Sun Titan + Gift of Immortality + Phyrexian Altar

Sun Titan
Gift of Immortality
Phyrexian Altar

Requires
Sun Titan must be on the battlefield. Gift of Immortality must be on the battlefield (attached to Sun Titan). Phyrexian Altar must be on the battlefield.
Steps
  1. Activate Phyrexian Altar by sacrificing Sun Titan, adding one mana of any color.
  2. When Sun Titan dies, Gift of Immortality triggers, returning Sun Titan from your graveyard to the battlefield.
  3. When Sun Titan enters the battlefield, it triggers, returning Gift of Immortality from your graveyard to the battlefield attached to Sun Titan.
  4. Repeat.
Results
Infinite colored mana. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Elenda, the Dusk Rose
1.60% of 5369 decks 86 decks
Teysa Karlov
0.48% of 15565 decks 75 decks
Ao, the Dawn Sky
9.57% of 658 decks 63 decks
Saffi Eriksdotter
9.33% of 536 decks 50 decks
Ratadrabik of Urborg
0.36% of 5777 decks 21 decks
Preston, the Vanisher
0.65% of 3253 decks 21 decks
Teysa, Orzhov Scion
0.73% of 2744 decks 20 decks
Eriette of the Charmed Apple
0.14% of 13668 decks 19 decks
Gerrard, Weatherlight Hero
4.26% of 423 decks 18 decks
Darien, King of Kjeldor
0.65% of 2755 decks 18 decks
Yosei, the Morning Star
23.53% of 68 decks 16 decks
Tobias, Doomed Conqueror
12.12% of 132 decks 16 decks
Siona, Captain of the Pyleas
1.70% of 941 decks 16 decks
Asmira, Holy Avenger
3.99% of 376 decks 15 decks
Ayli, Eternal Pilgrim
1.24% of 1207 decks 15 decks
Elesh Norn, Mother of Machines
0.14% of 7609 decks 11 decks
Nevinyrral, Urborg Tyrant
0.71% of 1541 decks 11 decks
Hofri Ghostforge
0.62% of 1782 decks 11 decks
New Cards
Spinner of Souls
100% of 3 decks +92% synergy
High-Society Hunter
75% of 4 decks +70% synergy
Gloomlake Verge
43% of 7 decks +25% synergy
Valkyrie's Call
38% of 8 decks +34% synergy
Overlord of the Balemurk
33% of 15 decks +26% synergy
High Synergy Cards
Ashnod's Altar
76% of 841 decks +69% synergy
Goblin Bombardment
67% of 87 decks +60% synergy
Viscera Seer
60% of 447 decks +51% synergy
Eternal Witness
71% of 165 decks +50% synergy
Renegade Rallier
47% of 164 decks +47% synergy
Karmic Guide
49% of 841 decks +45% synergy
Pitiless Plunderer
51% of 444 decks +43% synergy
Skullclamp
56% of 841 decks +43% synergy
Zulaport Cutthroat
53% of 447 decks +43% synergy
Blood Artist
53% of 447 decks +42% synergy
Top Cards
Swords to Plowshares
68% of 841 decks +5% synergy
Sakura-Tribe Elder
52% of 165 decks +33% synergy
Path to Exile
49% of 841 decks +3% synergy
Elas il-Kor, Sadistic Pilgrim
47% of 405 decks +36% synergy
Into the Pit
45% of 11 decks +40% synergy
Noble Hierarch
45% of 11 decks +29% synergy
Cruel Celebrant
45% of 443 decks +36% synergy
Animate Dead
45% of 447 decks +35% synergy
Insidious Roots
44% of 9 decks +36% synergy
Smothering Tithe
43% of 833 decks +18% synergy
Creatures
Imperial Recruiter
44% of 87 decks +38% synergy
Avacyn's Pilgrim
42% of 165 decks +28% synergy
Reveillark
41% of 841 decks +40% synergy
Birds of Paradise
41% of 165 decks +14% synergy
Dockside Extortionist
41% of 86 decks +29% synergy
Pinnacle Monk
39% of 18 decks +32% synergy
Esper Sentinel
39% of 811 decks +18% synergy
Saffi Eriksdotter
37% of 165 decks +35% synergy
Prime Speaker Zegana
36% of 11 decks +34% synergy
Coiling Oracle
36% of 11 decks +29% synergy
Solemn Simulacrum
36% of 841 decks +22% synergy
Warren Soultrader
36% of 86 decks +29% synergy
Protean Hulk
35% of 165 decks +33% synergy
Luminous Broodmoth
34% of 827 decks +32% synergy
Carrion Feeder
34% of 447 decks +29% synergy
Mulldrifter
33% of 92 decks +27% synergy
Accursed Marauder
31% of 67 decks +22% synergy
Enduring Innocence
31% of 58 decks +20% synergy
Arbaaz Mir
31% of 13 decks +25% synergy
Teysa Karlov
30% of 443 decks +26% synergy
Llanowar Elves
30% of 165 decks +9% synergy
Drivnod, Carnage Dominus
29% of 324 decks +26% synergy
Witch Enchanter
29% of 155 decks +20% synergy
Bartolomé del Presidio
29% of 173 decks +22% synergy
Yawgmoth, Thran Physician
28% of 443 decks +25% synergy
Reassembling Skeleton
28% of 447 decks +25% synergy
Murderous Redcap
28% of 25 decks +27% synergy
Spore Frog
28% of 165 decks +25% synergy
Ice-Fang Coatl
27% of 11 decks +26% synergy
Arixmethes, Slumbering Isle
27% of 11 decks +24% synergy
Grim Haruspex
27% of 447 decks +23% synergy
Marionette Apprentice
26% of 86 decks +18% synergy
Pawn of Ulamog
26% of 447 decks +23% synergy
Kitchen Finks
25% of 165 decks +24% synergy
Goblin Engineer
24% of 86 decks +21% synergy
Qasali Pridemage
24% of 165 decks +22% synergy
Wood Elves
24% of 165 decks +17% synergy
Kiki-Jiki, Mirror Breaker
24% of 87 decks +21% synergy
Master of Cruelties
24% of 25 decks +21% synergy
Braids, Arisen Nightmare
24% of 405 decks +16% synergy
Ghostly Dancers
24% of 21 decks +16% synergy
Elenda, the Dusk Rose
24% of 444 decks +18% synergy
Yahenni, Undying Partisan
23% of 446 decks +20% synergy
Knight of Autumn
22% of 163 decks +20% synergy
Reclamation Sage
22% of 164 decks +11% synergy
Fiend Artisan
22% of 32 decks +19% synergy
Haywire Mite
22% of 133 decks +18% synergy
Loran of the Third Path
21% of 712 decks +14% synergy
Devoted Druid
21% of 165 decks +18% synergy
Elves of Deep Shadow
21% of 33 decks +10% synergy
Instants
Anguished Unmaking
42% of 446 decks +18% synergy
Enlightened Tutor
42% of 841 decks +24% synergy
Beast Within
38% of 165 decks -0% synergy
Eladamri's Call
37% of 165 decks +26% synergy
Assassin's Trophy
36% of 33 decks +6% synergy
Worldly Tutor
35% of 165 decks +20% synergy
Generous Gift
34% of 832 decks +8% synergy
Counterspell
34% of 92 decks -9% synergy
Heroic Intervention
30% of 164 decks +0% synergy
Teferi's Protection
28% of 835 decks +8% synergy
Vampiric Tutor
28% of 447 decks +10% synergy
Malakir Rebirth
26% of 437 decks +18% synergy
Village Rites
26% of 437 decks +16% synergy
Void Rend
25% of 61 decks +10% synergy
Dovin's Veto
24% of 92 decks +5% synergy
Arcane Denial
24% of 92 decks +4% synergy
Cyclonic Rift
24% of 92 decks -4% synergy
Boros Charm
22% of 87 decks -3% synergy
Deadly Dispute
22% of 425 decks +10% synergy
Waterlogged Teachings
21% of 14 decks +15% synergy
Despark
21% of 443 decks +6% synergy
Flare of Fortitude
19% of 155 decks +13% synergy
Cosmic Rebirth
19% of 85 decks +16% synergy
Dark Ritual
19% of 447 decks -4% synergy
Chord of Calling
18% of 165 decks +12% synergy
Fell the Profane
17% of 86 decks +6% synergy
Chaos Warp
17% of 87 decks -15% synergy
Entomb
17% of 447 decks +10% synergy
An Offer You Can't Refuse
17% of 89 decks -4% synergy
Brought Back
17% of 832 decks +16% synergy
Valakut Awakening
16% of 85 decks +10% synergy
Stroke of Midnight
15% of 394 decks +3% synergy
Mana Drain
15% of 92 decks +0% synergy
Thrill of Possibility
15% of 86 decks +5% synergy
Flare of Denial
15% of 20 decks +11% synergy
Wear // Tear
15% of 87 decks +7% synergy
Plumb the Forbidden
15% of 431 decks +12% synergy
Fracture
14% of 431 decks +7% synergy
Swan Song
14% of 92 decks -2% synergy
Fierce Guardianship
14% of 92 decks -4% synergy
Deflecting Swat
14% of 85 decks -2% synergy
Inkshield
13% of 431 decks +8% synergy
Mystical Tutor
13% of 92 decks -2% synergy
Pyroblast
13% of 87 decks +6% synergy
Red Elemental Blast
13% of 87 decks +6% synergy
Ancient Excavation
12% of 64 decks +12% synergy
Rite of Harmony
12% of 155 decks +9% synergy
Nature's Claim
12% of 165 decks +3% synergy
Rakdos Charm
12% of 25 decks -2% synergy
Negate
12% of 92 decks -11% synergy
Sorceries
Demonic Tutor
38% of 447 decks +15% synergy
Damn
35% of 429 decks +19% synergy
Victimize
33% of 447 decks +21% synergy
Nature's Lore
33% of 165 decks +1% synergy
Reanimate
33% of 447 decks +17% synergy
Blasphemous Act
32% of 87 decks -1% synergy
Eerie Ultimatum
31% of 32 decks +19% synergy
Supreme Verdict
30% of 92 decks +16% synergy
Faithless Looting
30% of 87 decks +13% synergy
Three Visits
28% of 165 decks +4% synergy
Eldritch Evolution
27% of 164 decks +23% synergy
Gamble
26% of 87 decks +16% synergy
Cultivate
26% of 165 decks -20% synergy
Rampant Growth
25% of 165 decks -9% synergy
Diabolic Intent
25% of 447 decks +16% synergy
Jeska's Will
25% of 85 decks +7% synergy
Sevinne's Reclamation
25% of 832 decks +17% synergy
Farseek
24% of 165 decks -11% synergy
Toxic Deluge
23% of 447 decks +5% synergy
Ruinous Ultimatum
22% of 23 decks +4% synergy
Kodama's Reach
20% of 165 decks -11% synergy
Austere Command
18% of 841 decks +5% synergy
Bala Ged Recovery
17% of 161 decks +8% synergy
Altar of Bone
16% of 165 decks +16% synergy
Green Sun's Zenith
15% of 165 decks +9% synergy
Starfall Invocation
15% of 82 decks +10% synergy
Wrath of God
15% of 841 decks +8% synergy
Living Death
14% of 447 decks +9% synergy
Vindicate
14% of 447 decks +7% synergy
Idyllic Tutor
13% of 841 decks +8% synergy
Finale of Devastation
13% of 162 decks +5% synergy
Agadeem's Awakening
13% of 437 decks +9% synergy
Vanquish the Horde
12% of 803 decks +8% synergy
Life // Death
12% of 33 decks +10% synergy
Thrilling Discovery
12% of 83 decks +10% synergy
Farewell
12% of 797 decks -1% synergy
Buried Alive
11% of 447 decks +6% synergy
Flare of Cultivation
11% of 36 decks +8% synergy
Sign in Blood
11% of 447 decks +1% synergy
Rite of Oblivion
11% of 424 decks +8% synergy
Cathartic Reunion
10% of 87 decks +7% synergy
Asinine Antics
10% of 40 decks +9% synergy
Beseech the Mirror
10% of 210 decks +6% synergy
Windfall
10% of 92 decks -3% synergy
Open the Armory
10% of 837 decks +5% synergy
Dread Return
9% of 447 decks +4% synergy
Night's Whisper
9% of 447 decks +0% synergy
Vandalblast
9% of 87 decks -7% synergy
Natural Order
9% of 165 decks +7% synergy
Season of Loss
9% of 46 decks +6% synergy
Utility Artifacts
Altar of Dementia
43% of 841 decks +40% synergy
Birthing Pod
33% of 165 decks +31% synergy
Blasting Station
26% of 841 decks +26% synergy
Nim Deathmantle
22% of 841 decks +22% synergy
Bolas's Citadel
22% of 443 decks +13% synergy
Lightning Greaves
21% of 841 decks -4% synergy
Swiftfoot Boots
17% of 841 decks -11% synergy
Wayfarer's Bauble
15% of 841 decks +5% synergy
The Great Henge
14% of 162 decks +4% synergy
Pearl Medallion
13% of 841 decks +11% synergy
Archaeomancer's Map
13% of 816 decks +9% synergy
Pyrite Spellbomb
13% of 87 decks +12% synergy
The One Ring
12% of 517 decks +3% synergy
Oketra's Monument
10% of 836 decks +8% synergy
Spawning Pit
10% of 841 decks +10% synergy
Blade of Selves
9% of 837 decks +8% synergy
Aetherflux Reservoir
9% of 837 decks +5% synergy
Moonsilver Key
8% of 803 decks +7% synergy
Sensei's Divining Top
8% of 841 decks +3% synergy
Panharmonicon
8% of 837 decks +4% synergy
Altar of the Brood
8% of 840 decks +7% synergy
Expedition Map
8% of 841 decks +4% synergy
Blade of the Bloodchief
7% of 841 decks +6% synergy
The Ozolith
7% of 827 decks +4% synergy
Implement of Combustion
7% of 87 decks +7% synergy
Sword of the Animist
7% of 840 decks +2% synergy
Strionic Resonator
6% of 841 decks +3% synergy
Animation Module
5% of 837 decks +5% synergy
Enchantments
Aura Shards
37% of 165 decks +28% synergy
Pattern of Rebirth
36% of 165 decks +36% synergy
Kaya's Ghostform
34% of 443 decks +30% synergy
Rhystic Study
34% of 92 decks +6% synergy
Bastion of Remembrance
33% of 439 decks +26% synergy
Impact Tremors
31% of 87 decks +21% synergy
Greater Good
30% of 165 decks +25% synergy
Defiled Crypt // Cadaver Lab
27% of 11 decks +23% synergy
Fecundity
27% of 165 decks +26% synergy
Dictate of Erebos
27% of 447 decks +23% synergy
Angelic Renewal
26% of 841 decks +26% synergy
Mystic Remora
24% of 92 decks +6% synergy
Sterling Grove
23% of 165 decks +15% synergy
Land Tax
23% of 841 decks +16% synergy
Guardian Project
22% of 162 decks +14% synergy
Birthing Ritual
22% of 23 decks +20% synergy
Grave Pact
21% of 447 decks +17% synergy
Phyrexian Arena
21% of 447 decks +6% synergy
Sylvan Library
21% of 165 decks +9% synergy
The Meathook Massacre
20% of 424 decks +15% synergy
Utopia Sprawl
19% of 165 decks +12% synergy
Wild Growth
19% of 165 decks +8% synergy
Mirari's Wake
19% of 165 decks +6% synergy
Trouble in Pairs
19% of 223 decks +12% synergy
Sheltered by Ghosts
19% of 21 decks +11% synergy
Black Market Connections
19% of 410 decks +8% synergy
Funeral Room // Awakening Hall
17% of 29 decks +12% synergy
Anointed Procession
17% of 836 decks +8% synergy
Evolutionary Leap
17% of 164 decks +16% synergy
Dance of the Dead
17% of 447 decks +15% synergy
Bitterblossom
17% of 447 decks +13% synergy
Unholy Annex // Ritual Chamber
17% of 18 decks +12% synergy
Kenrith's Transformation
17% of 162 decks +10% synergy
Necromancy
16% of 447 decks +13% synergy
Phyrexian Reclamation
16% of 447 decks +12% synergy
Moldervine Reclamation
16% of 32 decks +7% synergy
Underworld Breach
15% of 85 decks +9% synergy
Warleader's Call
15% of 33 decks +4% synergy
Necropotence
15% of 447 decks +10% synergy
Martyr's Cause
15% of 841 decks +14% synergy
Fanatical Devotion
15% of 841 decks +14% synergy
Black Market
14% of 447 decks +10% synergy
Surgical Suite // Hospital Room
14% of 21 decks +11% synergy
Enchantress's Presence
13% of 165 decks +9% synergy
Ripples of Undeath
13% of 77 decks +7% synergy
Exquisite Blood
13% of 447 decks +7% synergy
Darksteel Mutation
12% of 840 decks +6% synergy
Sanguine Bond
12% of 447 decks +7% synergy
Rancor
12% of 165 decks +7% synergy
Nerd Rage
12% of 25 decks +11% synergy
Battles
Invasion of Theros
7% of 57 decks +6% synergy
Planeswalkers
Liliana, Dreadhorde General
20% of 443 decks +17% synergy
Elspeth, Sun's Champion
8% of 841 decks +3% synergy
Vivien on the Hunt
7% of 150 decks +6% synergy
Aminatou, the Fateshifter
6% of 64 decks +3% synergy
Narset, Parter of Veils
5% of 92 decks +0% synergy
Utility Lands
Phyrexian Tower
45% of 447 decks +36% synergy
Bojuka Bog
43% of 447 decks +13% synergy
High Market
38% of 841 decks +35% synergy
Boseiju, Who Endures
32% of 154 decks +13% synergy
Reliquary Tower
26% of 841 decks -3% synergy
Cabal Coffers
25% of 447 decks +14% synergy
Urborg, Tomb of Yawgmoth
23% of 841 decks +14% synergy
Kessig Wolf Run
23% of 13 decks +7% synergy
Hall of Heliod's Generosity
22% of 832 decks +15% synergy
Otawara, Soaring City
21% of 90 decks +4% synergy
Ancient Tomb
20% of 841 decks +9% synergy
Emeria, the Sky Ruin
19% of 841 decks +16% synergy
Takenuma, Abandoned Mire
19% of 419 decks +8% synergy
Nykthos, Shrine to Nyx
18% of 841 decks +12% synergy
Gavony Township
17% of 165 decks +7% synergy
Eiganjo, Seat of the Empire
17% of 797 decks +8% synergy
Urza's Saga
17% of 811 decks +10% synergy
Arena of Glory
17% of 18 decks +7% synergy
Great Furnace
16% of 87 decks +10% synergy
Spymaster's Vault
15% of 86 decks +11% synergy
Vault of the Archangel
15% of 447 decks +4% synergy
Monumental Henge
14% of 137 decks +10% synergy
War Room
14% of 825 decks +7% synergy
Castle Locthwain
13% of 443 decks +8% synergy
Westvale Abbey
12% of 446 decks +10% synergy
Dryad Arbor
12% of 165 decks +8% synergy
Rogue's Passage
11% of 841 decks -9% synergy
Command Beacon
10% of 837 decks +6% synergy
Volrath's Stronghold
10% of 447 decks +8% synergy
Academy Ruins
10% of 92 decks +5% synergy
Minas Tirith
10% of 459 decks +0% synergy
Buried Ruin
9% of 841 decks +4% synergy
Sokenzan, Crucible of Defiance
9% of 78 decks +4% synergy
Lonely Sandbar
9% of 92 decks +5% synergy
Mystic Sanctuary
9% of 92 decks -4% synergy
Castle Ardenvale
9% of 832 decks +3% synergy
Sunhome, Fortress of the Legion
8% of 87 decks +3% synergy
Barren Moor
7% of 447 decks +4% synergy
Temple of the False God
7% of 841 decks -3% synergy
Inventors' Fair
7% of 837 decks +3% synergy
Strip Mine
7% of 841 decks +4% synergy
Secluded Steppe
7% of 841 decks +3% synergy
Mortuary Mire
6% of 447 decks +2% synergy
Fountainport
6% of 66 decks +2% synergy
Mistveil Plains
6% of 841 decks +5% synergy
Yavimaya, Cradle of Growth
6% of 811 decks -3% synergy
Axgard Armory
6% of 85 decks +3% synergy
Witch's Cottage
6% of 443 decks +2% synergy
Kher Keep
6% of 87 decks +3% synergy
Restless Fortress
6% of 211 decks +2% synergy
Mana Artifacts
Sol Ring
90% of 841 decks +5% synergy
Arcane Signet
74% of 832 decks +2% synergy
Talisman of Hierarchy
54% of 443 decks +30% synergy
Orzhov Signet
51% of 447 decks +24% synergy
Talisman of Conviction
47% of 86 decks +24% synergy
Boros Signet
39% of 87 decks +16% synergy
Talisman of Dominance
36% of 64 decks +5% synergy
Talisman of Progress
35% of 92 decks +12% synergy
Azorius Signet
29% of 92 decks +3% synergy
Dimir Signet
27% of 64 decks -3% synergy
Mind Stone
24% of 841 decks +6% synergy
Selesnya Signet
18% of 165 decks +9% synergy
Fellwar Stone
17% of 841 decks -4% synergy
Cursed Mirror
13% of 83 decks +8% synergy
Talisman of Unity
13% of 165 decks +5% synergy
Mana Crypt
12% of 841 decks +4% synergy
Talisman of Indulgence
12% of 25 decks -14% synergy
Rakdos Signet
12% of 25 decks -18% synergy
Thought Vessel
11% of 837 decks -6% synergy
Commander's Sphere
10% of 840 decks -5% synergy
Golgari Signet
9% of 33 decks -4% synergy
Jeweled Lotus
8% of 825 decks +2% synergy
Mana Vault
7% of 841 decks +1% synergy
Throne of Eldraine
6% of 366 decks +4% synergy
Lotus Petal
6% of 841 decks -1% synergy
Marble Diamond
5% of 841 decks +1% synergy
Lands
Overgrown Tomb
76% of 33 decks +33% synergy
Temple Garden
73% of 165 decks +33% synergy
Godless Shrine
71% of 447 decks +30% synergy
Hallowed Fountain
71% of 92 decks +30% synergy
Command Tower
71% of 841 decks -3% synergy
Sacred Foundry
69% of 87 decks +33% synergy
Raffine's Tower
69% of 61 decks +41% synergy
Blood Crypt
68% of 25 decks +29% synergy
Watery Grave
66% of 64 decks +25% synergy
Isolated Chapel
65% of 447 decks +38% synergy
Breeding Pool
64% of 11 decks +23% synergy
Sunpetal Grove
62% of 165 decks +39% synergy
Canopy Vista
62% of 164 decks +25% synergy
Spectator Seating
59% of 85 decks +34% synergy
Caves of Koilos
58% of 447 decks +30% synergy
Savai Triome
57% of 23 decks +29% synergy
Clifftop Retreat
55% of 87 decks +27% synergy
Hinterland Harbor
55% of 11 decks +27% synergy
Bountiful Promenade
53% of 163 decks +29% synergy
Indatha Triome
53% of 32 decks +22% synergy
Undergrowth Stadium
52% of 31 decks +25% synergy
Vault of Champions
51% of 437 decks +26% synergy
Elegant Parlor
48% of 33 decks +39% synergy
Dragonskull Summit
48% of 25 decks +17% synergy
Battlefield Forge
47% of 87 decks +22% synergy
Cinder Glade
46% of 13 decks +8% synergy
Underground Mortuary
45% of 11 decks +29% synergy
Glacial Fortress
45% of 92 decks +19% synergy
Sea of Clouds
45% of 92 decks +19% synergy
Brushland
44% of 165 decks +28% synergy
Luxury Suite
42% of 24 decks +15% synergy
Jetmir's Garden
42% of 12 decks +9% synergy
Lush Portico
40% of 52 decks +28% synergy
Tainted Field
40% of 447 decks +27% synergy
Fetid Heath
40% of 447 decks +29% synergy
Spire Garden
38% of 13 decks +14% synergy
Stomping Ground
38% of 13 decks -3% synergy
Prairie Stream
38% of 92 decks +5% synergy
Arcane Sanctum
38% of 64 decks +10% synergy
Overgrown Farmland
37% of 155 decks +21% synergy
Shadowy Backstreet
37% of 127 decks +24% synergy
Yavimaya Coast
36% of 11 decks +10% synergy
Drowned Catacomb
36% of 64 decks +10% synergy
Morphic Pool
36% of 64 decks +10% synergy
Shattered Sanctum
36% of 421 decks +23% synergy
Marsh Flats
35% of 841 decks +24% synergy
Contaminated Landscape
33% of 12 decks +21% synergy
Sundown Pass
33% of 78 decks +18% synergy
Woodland Cemetery
33% of 33 decks +5% synergy
Nomad Outpost
32% of 25 decks +4% synergy