Roon of the Hidden Realm + Eternal Witness + Time Warp
Roon of the Hidden Realm
Eternal Witness
Time Warp
Requires
Roon of the Hidden Realm must be on the battlefield.
Eternal Witness must be on the battlefield.
Time Warp must be in hand.
Roon does not have summoning sickness.
Mana needed: 
each turn
each turn
Steps
- Cast Time Warp by paying
, causing you to take an extra turn after this one. - Activate Roon by paying
and tapping it, exiling Eternal Witness until the beginning of your end step. - At the beginning of your end step, Roon triggers, returning Eternal Witness from exile to the battlefield.
- Eternal Witness enters the battlefield, putting Time Warp into your hand from your graveyard.
- Repeat each turn.
Results
Infinite turns.
Roon of the Hidden Realm
6.86% of 3265 decks
224 decks
Atraxa, Grand Unifier
0.06% of 14164 decks
8 decks
Derevi, Empyrial Tactician
0.04% of 7387 decks
3 decks
Chulane, Teller of Tales
0.04% of 7367 decks
3 decks
Amareth, the Lustrous
0.07% of 1415 decks
1 decks
Mr. Foxglove
0.06% of 1730 decks
1 decks
Ishai, Ojutai Dragonspeaker // Kodama of the East Tree
0.21% of 467 decks
1 decks
Galadriel, Light of Valinor
0.01% of 7774 decks
1 decks
Esika, God of the Tree
0.01% of 17776 decks
1 decks
Lagrella, the Magpie
0.06% of 1590 decks
1 decks
High Synergy Cards
Soulherder
86% of 243 decks
+81% synergy
Dour Port-Mage
82% of 22 decks
+76% synergy
Coiling Oracle
83% of 244 decks
+75% synergy
Panharmonicon
80% of 244 decks
+75% synergy
Mulldrifter
77% of 244 decks
+71% synergy
Peregrine Drake
73% of 244 decks
+69% synergy
Ephemerate
74% of 243 decks
+68% synergy
Elesh Norn, Mother of Machines
72% of 162 decks
+67% synergy
Yarok, the Desecrated
67% of 9 decks
+64% synergy
Deadeye Navigator
64% of 244 decks
+62% synergy
Top Cards
Baleful Strix
67% of 9 decks
+53% synergy
Wood Elves
65% of 244 decks
+58% synergy
Teleportation Circle
64% of 229 decks
+60% synergy
Thassa, Deep-Dwelling
64% of 239 decks
+61% synergy
Eerie Interlude
64% of 244 decks
+59% synergy
Swords to Plowshares
62% of 244 decks
-1% synergy
Aether Channeler
62% of 199 decks
+60% synergy
Brago, King Eternal
61% of 244 decks
+58% synergy
Archaeomancer
59% of 244 decks
+55% synergy
Agent of Treachery
58% of 243 decks
+56% synergy
Creatures
Venser, Shaper Savant
58% of 244 decks
+56% synergy
Cloudblazer
54% of 244 decks
+51% synergy
Emiel the Blessed
52% of 234 decks
+49% synergy
Acidic Slime
50% of 244 decks
+46% synergy
Farhaven Elf
49% of 244 decks
+45% synergy
Wall of Blossoms
48% of 244 decks
+47% synergy
Knight of Autumn
48% of 243 decks
+46% synergy
Reflector Mage
48% of 244 decks
+46% synergy
Yorion, Sky Nomad
47% of 238 decks
+45% synergy
Seedborn Muse
46% of 244 decks
+38% synergy
Reclamation Sage
45% of 244 decks
+34% synergy
Sun Titan
43% of 244 decks
+32% synergy
Restoration Angel
41% of 244 decks
+38% synergy
Wall of Omens
40% of 244 decks
+37% synergy
Karmic Guide
39% of 244 decks
+35% synergy
Solemn Simulacrum
38% of 244 decks
+24% synergy
Charming Prince
37% of 242 decks
+35% synergy
Preston, the Vanisher
36% of 174 decks
+35% synergy
Eldrazi Displacer
36% of 244 decks
+35% synergy
Avenger of Zendikar
36% of 244 decks
+26% synergy
Thragtusk
34% of 244 decks
+33% synergy
Birds of Paradise
34% of 244 decks
+7% synergy
Noxious Gearhulk
33% of 9 decks
+30% synergy
Ravenous Chupacabra
33% of 9 decks
+29% synergy
Clifftop Lookout
32% of 25 decks
+28% synergy
Stonehorn Dignitary
31% of 244 decks
+31% synergy
Felidar Guardian
30% of 243 decks
+28% synergy
Flickerwisp
30% of 244 decks
+28% synergy
Timeless Witness
30% of 231 decks
+27% synergy
Displacer Kitten
29% of 220 decks
+24% synergy
Noble Hierarch
29% of 244 decks
+13% synergy
Risen Reef
28% of 243 decks
+24% synergy
Mystic Snake
27% of 244 decks
+25% synergy
Elvish Visionary
27% of 244 decks
+25% synergy
Skyclave Apparition
27% of 233 decks
+23% synergy
Witch Enchanter
26% of 46 decks
+16% synergy
Recruiter of the Guard
25% of 244 decks
+22% synergy
Nadu, Winged Wisdom
24% of 41 decks
+21% synergy
Loran of the Third Path
24% of 181 decks
+17% synergy
Solitude
24% of 231 decks
+22% synergy
Beza, the Bounding Spring
24% of 29 decks
+22% synergy
Reveillark
24% of 244 decks
+22% synergy
Galadriel, Light of Valinor
22% of 76 decks
+19% synergy
Kiora's Follower
22% of 244 decks
+16% synergy
Spirited Companion
22% of 228 decks
+18% synergy
Prime Speaker Zegana
20% of 244 decks
+17% synergy
Glen Elendra Archmage
19% of 244 decks
+17% synergy
Perplexing Chimera
19% of 244 decks
+18% synergy
Gruff Triplets
19% of 85 decks
+17% synergy
Hornet Queen
18% of 244 decks
+16% synergy
Instants
Cyclonic Rift
50% of 244 decks
+22% synergy
Ghostly Flicker
48% of 244 decks
+43% synergy
Tainted Pact
44% of 9 decks
+40% synergy
Assassin's Trophy
44% of 9 decks
+14% synergy
Eladamri's Call
44% of 244 decks
+33% synergy
Counterspell
43% of 244 decks
+1% synergy
Path to Exile
43% of 244 decks
-2% synergy
Demonic Consultation
33% of 9 decks
+30% synergy
Malakir Rebirth
33% of 9 decks
+25% synergy
Worldly Tutor
33% of 244 decks
+19% synergy
Lae'zel's Acrobatics
31% of 220 decks
+30% synergy
Momentary Blink
31% of 244 decks
+28% synergy
Beast Within
30% of 244 decks
-9% synergy
Dovin's Veto
28% of 243 decks
+9% synergy
Mystical Tutor
27% of 244 decks
+12% synergy
Mana Drain
25% of 244 decks
+10% synergy
Enlightened Tutor
25% of 244 decks
+7% synergy
Cloudshift
24% of 244 decks
+21% synergy
Teferi's Protection
21% of 243 decks
+1% synergy
Heroic Intervention
19% of 243 decks
-11% synergy
Fierce Guardianship
19% of 238 decks
+1% synergy
Semester's End
19% of 231 decks
+17% synergy
Ghostway
18% of 244 decks
+17% synergy
Swan Song
18% of 244 decks
+1% synergy
Generous Gift
17% of 243 decks
-8% synergy
Chord of Calling
16% of 244 decks
+11% synergy
Arcane Denial
16% of 244 decks
-3% synergy
Brainstorm
12% of 244 decks
-9% synergy
Disallow
12% of 243 decks
+10% synergy
Displace
11% of 244 decks
+10% synergy
Essence Flux
10% of 244 decks
+8% synergy
Strix Serenade
10% of 42 decks
+3% synergy
Sink into Stupor
10% of 42 decks
-4% synergy
Nature's Claim
9% of 244 decks
-0% synergy
Force of Will
9% of 244 decks
-2% synergy
Growth Spiral
9% of 243 decks
-13% synergy
An Offer You Can't Refuse
9% of 227 decks
-12% synergy
Negate
9% of 244 decks
-14% synergy
Force of Negation
8% of 243 decks
-1% synergy
Stifle
6% of 244 decks
+5% synergy
Pact of Negation
6% of 244 decks
-1% synergy
Cosmic Intervention
6% of 232 decks
+4% synergy
Archdruid's Charm
5% of 56 decks
-2% synergy
Illusionist's Stratagem
5% of 243 decks
+5% synergy
Tale's End
5% of 243 decks
+4% synergy
Krosan Grip
5% of 244 decks
-2% synergy
Sorceries
Farseek
41% of 244 decks
+7% synergy
Cultivate
40% of 244 decks
-7% synergy
Toxic Deluge
33% of 9 decks
+16% synergy
Another Round
31% of 52 decks
+29% synergy
Supreme Verdict
30% of 244 decks
+16% synergy
Nature's Lore
29% of 244 decks
-3% synergy
Kodama's Reach
27% of 244 decks
-5% synergy
Rampant Growth
27% of 244 decks
-8% synergy
Three Visits
25% of 244 decks
+0% synergy
Farewell
25% of 228 decks
+11% synergy
Time Wipe
18% of 243 decks
+11% synergy
Bala Ged Recovery
18% of 233 decks
+9% synergy
Temporal Manipulation
17% of 244 decks
+16% synergy
Green Sun's Zenith
17% of 244 decks
+11% synergy
Austere Command
13% of 244 decks
+0% synergy
Neoform
10% of 243 decks
+5% synergy
Wrath of God
10% of 244 decks
+3% synergy
Finale of Devastation
9% of 243 decks
+1% synergy
Skyshroud Claim
9% of 244 decks
-0% synergy
Wargate
9% of 244 decks
+5% synergy
Eldritch Evolution
8% of 244 decks
+3% synergy
Solve the Equation
8% of 231 decks
+3% synergy
Walk the Aeons
8% of 244 decks
+7% synergy
Capture of Jingzhou
7% of 244 decks
+7% synergy
Rite of Replication
7% of 244 decks
+3% synergy
Approach of the Second Sun
6% of 243 decks
+2% synergy
Tooth and Nail
6% of 244 decks
+5% synergy
Ponder
6% of 244 decks
-7% synergy
Utility Artifacts
Conjurer's Closet
44% of 244 decks
+42% synergy
Sword of Hearth and Home
31% of 231 decks
+29% synergy
Swiftfoot Boots
27% of 244 decks
-0% synergy
Lightning Greaves
27% of 244 decks
+1% synergy
Strionic Resonator
19% of 244 decks
+15% synergy
The Great Henge
17% of 242 decks
+7% synergy
The One Ring
12% of 121 decks
+3% synergy
Thousand-Year Elixir
9% of 244 decks
+7% synergy
Altar of the Brood
9% of 244 decks
+7% synergy
Birthing Pod
8% of 244 decks
+6% synergy
Sundial of the Infinite
7% of 244 decks
+7% synergy
Vedalken Orrery
7% of 244 decks
+6% synergy
Sensei's Divining Top
6% of 244 decks
+1% synergy
Sting, the Glinting Dagger
6% of 105 decks
+4% synergy
Enchantments
Guardian Project
44% of 243 decks
+35% synergy
Virtue of Knowledge
39% of 94 decks
+36% synergy
Aura Shards
39% of 244 decks
+30% synergy
Rhystic Study
38% of 244 decks
+10% synergy
Phyrexian Arena
33% of 9 decks
+19% synergy
Smothering Tithe
26% of 243 decks
+1% synergy
Mirari's Wake
20% of 244 decks
+6% synergy
Sylvan Library
20% of 244 decks
+8% synergy
Mystic Remora
14% of 244 decks
-4% synergy
Aid from the Cowl
12% of 243 decks
+12% synergy
Leyline of Anticipation
9% of 244 decks
+4% synergy
Wilderness Reclamation
7% of 243 decks
+3% synergy
Defense of the Heart
7% of 244 decks
+4% synergy
Cathars' Crusade
5% of 244 decks
-0% synergy
Wild Growth
5% of 244 decks
-6% synergy
Planeswalkers
The Eternal Wanderer
34% of 134 decks
+31% synergy
Aminatou, the Fateshifter
33% of 9 decks
+30% synergy
Venser, the Sojourner
22% of 244 decks
+20% synergy
Teferi, Time Raveler
7% of 243 decks
+0% synergy
Utility Lands
Reliquary Tower
47% of 244 decks
+18% synergy
Minamo, School at Water's Edge
27% of 244 decks
+22% synergy
Alchemist's Refuge
26% of 244 decks
+19% synergy
Boseiju, Who Endures
23% of 228 decks
+3% synergy
Yavimaya, Cradle of Growth
23% of 231 decks
+13% synergy
Ancient Tomb
18% of 244 decks
+7% synergy
Temple of the False God
16% of 244 decks
+6% synergy
Otawara, Soaring City
15% of 228 decks
-2% synergy
Mystic Sanctuary
12% of 242 decks
-0% synergy
Eiganjo, Seat of the Empire
8% of 228 decks
-1% synergy
Strip Mine
6% of 244 decks
+3% synergy
Gaea's Cradle
6% of 244 decks
+0% synergy
Mana Artifacts
Sol Ring
95% of 244 decks
+10% synergy
Arcane Signet
67% of 242 decks
-5% synergy
Simic Signet
21% of 244 decks
+6% synergy
Selesnya Signet
16% of 244 decks
+7% synergy
Azorius Signet
15% of 244 decks
-11% synergy
Mana Crypt
14% of 244 decks
+5% synergy
Chromatic Lantern
13% of 244 decks
+4% synergy
Fellwar Stone
12% of 244 decks
-9% synergy
Thought Vessel
11% of 244 decks
-6% synergy
Talisman of Curiosity
9% of 243 decks
-3% synergy
Talisman of Unity
8% of 244 decks
+1% synergy
Commander's Sphere
8% of 244 decks
-7% synergy
Decanter of Endless Water
8% of 220 decks
+3% synergy
Talisman of Progress
8% of 244 decks
-15% synergy
Mana Vault
7% of 244 decks
+1% synergy
Patriar's Seal
6% of 220 decks
+4% synergy
Chrome Mox
5% of 244 decks
-1% synergy
Jeweled Lotus
5% of 233 decks
-1% synergy
Lands
Command Tower
95% of 244 decks
+21% synergy
Overgrown Tomb
78% of 9 decks
+35% synergy
Temple Garden
70% of 244 decks
+30% synergy
Hallowed Fountain
70% of 244 decks
+29% synergy
Watery Grave
67% of 9 decks
+26% synergy
Breeding Pool
66% of 244 decks
+25% synergy
Spara's Headquarters
61% of 227 decks
+29% synergy
Zagoth Triome
56% of 9 decks
+25% synergy
Godless Shrine
56% of 9 decks
+15% synergy
Windswept Heath
49% of 244 decks
+39% synergy
Flooded Strand
48% of 244 decks
+37% synergy
Misty Rainforest
46% of 244 decks
+35% synergy
Indatha Triome
44% of 9 decks
+13% synergy
Rejuvenating Springs
44% of 233 decks
+16% synergy
Glacial Fortress
43% of 244 decks
+18% synergy
Sunpetal Grove
42% of 244 decks
+19% synergy
Canopy Vista
42% of 244 decks
+6% synergy
Hinterland Harbor
41% of 244 decks
+14% synergy
Seaside Citadel
41% of 244 decks
+15% synergy
Exotic Orchard
40% of 244 decks
+5% synergy
Bountiful Promenade
40% of 243 decks
+15% synergy
Yavimaya Coast
39% of 244 decks
+13% synergy
Prairie Stream
39% of 244 decks
+5% synergy
Sea of Clouds
38% of 243 decks
+12% synergy
Raffine's Tower
33% of 9 decks
+5% synergy
Caves of Koilos
33% of 9 decks
+5% synergy
Brushland
28% of 244 decks
+12% synergy
Adarkar Wastes
26% of 244 decks
+9% synergy
Tranquil Landscape
25% of 36 decks
+8% synergy
Evolving Wilds
24% of 244 decks
+3% synergy
Flooded Grove
22% of 244 decks
+10% synergy
Overgrown Farmland
21% of 229 decks
+5% synergy
Selesnya Sanctuary
21% of 244 decks
+7% synergy
Azorius Chancery
21% of 244 decks
+6% synergy
Dreamroot Cascade
21% of 229 decks
+2% synergy
Simic Growth Chamber
21% of 244 decks
+1% synergy
Temple of Mystery
19% of 244 decks
+2% synergy
Meticulous Archive
18% of 62 decks
+7% synergy
Lush Portico
18% of 62 decks
+6% synergy
Hedge Maze
18% of 62 decks
+4% synergy
Fabled Passage
17% of 242 decks
+8% synergy
Deserted Beach
17% of 229 decks
+1% synergy
Savannah
16% of 244 decks
+3% synergy
Tropical Island
15% of 244 decks
+1% synergy
Terramorphic Expanse
15% of 244 decks
-1% synergy
Temple of Enlightenment
15% of 244 decks
-2% synergy
Tundra
14% of 244 decks
+0% synergy
Hengegate Pathway
14% of 232 decks
+6% synergy
Irrigated Farmland
14% of 243 decks
+6% synergy
Mystic Gate
13% of 244 decks
+7% synergy