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.
Top Commanders (1)
Roon of the Hidden Realm
6.98% of 3525 decks
246 decks
New Cards (1)
Another Round
100% of 3 decks
+99% synergy
High Synergy Cards (10)
Omnath, Locus of Creation
100% of 5 decks
+100% synergy
Yarok, the Desecrated
83% of 12 decks
+83% synergy
Soulherder
84% of 268 decks
+83% synergy
Coiling Oracle
84% of 269 decks
+82% synergy
Archangel Avacyn
80% of 5 decks
+80% synergy
Fury
80% of 5 decks
+80% synergy
Kiki-Jiki, Mirror Breaker
80% of 5 decks
+78% synergy
Ignoble Hierarch
80% of 5 decks
+77% synergy
Mulldrifter
79% of 269 decks
+75% synergy
Elesh Norn, Mother of Machines
75% of 119 decks
+72% synergy
Top Cards (10)
Baleful Strix
83% of 12 decks
+80% synergy
Panharmonicon
81% of 269 decks
+77% synergy
Ephemerate
75% of 268 decks
+72% synergy
Peregrine Drake
71% of 269 decks
+69% synergy
Deadeye Navigator
67% of 269 decks
+66% synergy
Aether Channeler
66% of 164 decks
+65% synergy
Wood Elves
66% of 269 decks
+62% synergy
Venser, Shaper Savant
64% of 269 decks
+63% synergy
Teleportation Circle
63% of 251 decks
+61% synergy
Thassa, Deep-Dwelling
62% of 264 decks
+60% synergy
Creatures (50)
Brago, King Eternal
61% of 269 decks
+60% synergy
Agent of Treachery
61% of 268 decks
+60% synergy
Archaeomancer
57% of 269 decks
+55% synergy
Cloudblazer
55% of 269 decks
+54% synergy
Galadriel, Light of Valinor
52% of 29 decks
+51% synergy
Knight of Autumn
51% of 268 decks
+51% synergy
Sun Titan
51% of 269 decks
+46% synergy
Yorion, Sky Nomad
51% of 260 decks
+51% synergy
Reflector Mage
51% of 269 decks
+50% synergy
Seedborn Muse
51% of 269 decks
+46% synergy
Farhaven Elf
49% of 269 decks
+47% synergy
Wall of Blossoms
48% of 269 decks
+48% synergy
Emiel the Blessed
48% of 259 decks
+47% synergy
Reclamation Sage
48% of 269 decks
+42% synergy
Acidic Slime
46% of 269 decks
+44% synergy
Delney, Streetwise Lookout
44% of 16 decks
+41% synergy
Restoration Angel
43% of 269 decks
+42% synergy
Karmic Guide
43% of 269 decks
+41% synergy
Hostage Taker
42% of 12 decks
+40% synergy
Solemn Simulacrum
41% of 269 decks
+26% synergy
Wall of Omens
40% of 269 decks
+38% synergy
Preston, the Vanisher
40% of 131 decks
+39% synergy
Charming Prince
39% of 267 decks
+38% synergy
Avenger of Zendikar
39% of 269 decks
+34% synergy
Displacer Kitten
37% of 193 decks
+35% synergy
Birds of Paradise
36% of 269 decks
+24% synergy
Eldrazi Displacer
36% of 269 decks
+35% synergy
Thragtusk
35% of 269 decks
+34% synergy
Risen Reef
32% of 268 decks
+32% synergy
Skyclave Apparition
32% of 259 decks
+30% synergy
Stonehorn Dignitary
32% of 269 decks
+31% synergy
Flickerwisp
31% of 269 decks
+30% synergy
Felidar Guardian
31% of 268 decks
+30% synergy
Reveillark
29% of 269 decks
+28% synergy
Noble Hierarch
29% of 269 decks
+27% synergy
Mystic Snake
29% of 269 decks
+28% synergy
Elvish Visionary
29% of 269 decks
+27% synergy
Timeless Witness
28% of 254 decks
+27% synergy
Loran of the Third Path
28% of 135 decks
+25% synergy
Recruiter of the Guard
28% of 269 decks
+27% synergy
Solitude
28% of 255 decks
+27% synergy
Noxious Gearhulk
25% of 12 decks
+23% synergy
Ravenous Chupacabra
25% of 12 decks
+23% synergy
Kiora's Follower
23% of 269 decks
+22% synergy
Spirited Companion
23% of 243 decks
+21% synergy
Perplexing Chimera
22% of 269 decks
+22% synergy
Glen Elendra Archmage
22% of 269 decks
+21% synergy
Topiary Stomper
21% of 236 decks
+19% synergy
Bloom Tender
21% of 269 decks
+17% synergy
Prime Speaker Zegana
19% of 269 decks
+19% synergy
Instants (46)
Eerie Interlude
62% of 269 decks
+60% synergy
Swords to Plowshares
60% of 269 decks
+32% synergy
Cyclonic Rift
50% of 269 decks
+36% synergy
Eladamri's Call
47% of 269 decks
+44% synergy
Ghostly Flicker
44% of 269 decks
+42% synergy
Counterspell
42% of 269 decks
+21% synergy
Path to Exile
38% of 269 decks
+19% synergy
Lae'zel's Acrobatics
37% of 209 decks
+36% synergy
Assassin's Trophy
33% of 12 decks
+27% synergy
Momentary Blink
33% of 269 decks
+32% synergy
Worldly Tutor
32% of 269 decks
+25% synergy
Dovin's Veto
31% of 268 decks
+27% synergy
Mystical Tutor
28% of 269 decks
+20% synergy
Beast Within
26% of 269 decks
+7% synergy
Demonic Consultation
25% of 12 decks
+23% synergy
Tainted Pact
25% of 12 decks
+23% synergy
Enlightened Tutor
25% of 269 decks
+16% synergy
Mana Drain
23% of 269 decks
+15% synergy
Cloudshift
22% of 269 decks
+21% synergy
Teferi's Protection
22% of 268 decks
+12% synergy
Ghostway
20% of 269 decks
+20% synergy
Semester's End
20% of 256 decks
+19% synergy
Fierce Guardianship
20% of 263 decks
+11% synergy
Heroic Intervention
19% of 268 decks
+5% synergy
Chord of Calling
18% of 269 decks
+15% synergy
Swan Song
16% of 269 decks
+8% synergy
Generous Gift
15% of 268 decks
+3% synergy
Disallow
14% of 268 decks
+13% synergy
Arcane Denial
14% of 269 decks
+4% synergy
Force of Will
13% of 269 decks
+8% synergy
Brainstorm
13% of 269 decks
+2% synergy
Displace
11% of 269 decks
+10% synergy
Krosan Grip
9% of 269 decks
+5% synergy
Nature's Claim
9% of 269 decks
+4% synergy
Force of Negation
8% of 268 decks
+4% synergy
Essence Flux
8% of 269 decks
+7% synergy
Negate
8% of 269 decks
-3% synergy
Pact of Negation
7% of 269 decks
+4% synergy
Tale's End
7% of 268 decks
+7% synergy
Stifle
7% of 269 decks
+7% synergy
Cosmic Intervention
7% of 256 decks
+6% synergy
Disorder in the Court
7% of 245 decks
+6% synergy
An Offer You Can't Refuse
6% of 236 decks
-4% synergy
Veil of Summer
6% of 268 decks
+3% synergy
Growth Spiral
6% of 268 decks
+2% synergy
Bant Charm
6% of 269 decks
+5% synergy
Sorceries (27)
Farseek
39% of 269 decks
+24% synergy
Cultivate
38% of 269 decks
+16% synergy
Supreme Verdict
29% of 269 decks
+26% synergy
Nature's Lore
27% of 269 decks
+12% synergy
Kodama's Reach
26% of 269 decks
+10% synergy
Demonic Tutor
25% of 12 decks
+13% synergy
Farewell
25% of 243 decks
+18% synergy
Three Visits
25% of 269 decks
+13% synergy
Rampant Growth
24% of 269 decks
+7% synergy
Green Sun's Zenith
20% of 269 decks
+17% synergy
Temporal Manipulation
18% of 269 decks
+18% synergy
Time Wipe
17% of 268 decks
+16% synergy
Bala Ged Recovery
15% of 259 decks
+10% synergy
Neoform
13% of 268 decks
+12% synergy
Finale of Devastation
13% of 268 decks
+10% synergy
Austere Command
13% of 269 decks
+8% synergy
Eldritch Evolution
11% of 269 decks
+9% synergy
Skyshroud Claim
10% of 269 decks
+5% synergy
Wrath of God
9% of 269 decks
+6% synergy
Solve the Equation
8% of 256 decks
+6% synergy
Wargate
8% of 269 decks
+7% synergy
Vanquish the Horde
7% of 246 decks
+5% synergy
Walk the Aeons
6% of 269 decks
+5% synergy
Ponder
6% of 269 decks
-1% synergy
Hallowed Respite
6% of 246 decks
+6% synergy
Tooth and Nail
6% of 269 decks
+5% synergy
Rite of Replication
6% of 269 decks
+4% synergy
Utility Artifacts (15)
Conjurer's Closet
44% of 269 decks
+42% synergy
Sword of Hearth and Home
31% of 256 decks
+28% synergy
Lightning Greaves
25% of 269 decks
-1% synergy
Swiftfoot Boots
24% of 269 decks
-4% synergy
Strionic Resonator
19% of 269 decks
+16% synergy
The Great Henge
14% of 267 decks
+9% synergy
Birthing Pod
12% of 269 decks
+11% synergy
The One Ring
12% of 77 decks
+3% synergy
Thousand-Year Elixir
12% of 269 decks
+9% synergy
Vedalken Orrery
11% of 269 decks
+9% synergy
Sundial of the Infinite
9% of 269 decks
+8% synergy
Altar of the Brood
9% of 269 decks
+7% synergy
Sting, the Glinting Dagger
6% of 63 decks
+5% synergy
Sensei's Divining Top
6% of 269 decks
+0% synergy
Golden Argosy
5% of 167 decks
+5% synergy
Enchantments (15)
Virtue of Knowledge
51% of 51 decks
+49% synergy
Guardian Project
43% of 268 decks
+39% synergy
Aura Shards
40% of 269 decks
+38% synergy
Rhystic Study
39% of 269 decks
+25% synergy
Smothering Tithe
27% of 268 decks
+15% synergy
Phyrexian Arena
25% of 12 decks
+18% synergy
Sylvan Library
22% of 269 decks
+16% synergy
Mirari's Wake
20% of 269 decks
+16% synergy
Mystic Remora
16% of 269 decks
+7% synergy
Aid from the Cowl
12% of 268 decks
+12% synergy
Leyline of Anticipation
10% of 269 decks
+8% synergy
Wilderness Reclamation
7% of 268 decks
+5% synergy
Defense of the Heart
6% of 269 decks
+5% synergy
Carpet of Flowers
6% of 269 decks
+4% synergy
Cathars' Crusade
5% of 269 decks
+2% synergy
Planeswalkers (4)
The Eternal Wanderer
37% of 90 decks
+35% synergy
Aminatou, the Fateshifter
25% of 12 decks
+25% synergy
Venser, the Sojourner
24% of 269 decks
+24% synergy
Teferi, Time Raveler
6% of 268 decks
+5% synergy
Utility Lands (14)
Reliquary Tower
48% of 269 decks
+19% synergy
Minamo, School at Water's Edge
30% of 269 decks
+28% synergy
Takenuma, Abandoned Mire
25% of 12 decks
+19% synergy
Boseiju, Who Endures
25% of 244 decks
+16% synergy
Alchemist's Refuge
23% of 269 decks
+22% synergy
Yavimaya, Cradle of Growth
21% of 255 decks
+12% synergy
Ancient Tomb
17% of 269 decks
+6% synergy
Otawara, Soaring City
16% of 244 decks
+7% synergy
Temple of the False God
14% of 269 decks
+4% synergy
Mystic Sanctuary
13% of 267 decks
+6% synergy
Eiganjo, Seat of the Empire
10% of 243 decks
+6% synergy
Gaea's Cradle
7% of 269 decks
+4% synergy
Strip Mine
6% of 269 decks
+3% synergy
Arcane Lighthouse
6% of 269 decks
+4% synergy
Mana Artifacts (18)
Sol Ring
93% of 269 decks
+9% synergy
Arcane Signet
67% of 267 decks
-4% synergy
Simic Signet
18% of 269 decks
+14% synergy
Mana Crypt
18% of 269 decks
+6% synergy
Selesnya Signet
14% of 269 decks
+12% synergy
Azorius Signet
12% of 269 decks
+5% synergy
Chromatic Lantern
11% of 269 decks
+2% synergy
Thought Vessel
11% of 269 decks
-5% synergy
Fellwar Stone
11% of 269 decks
-10% synergy
Decanter of Endless Water
10% of 172 decks
+5% synergy
Patriar's Seal
10% of 175 decks
+8% synergy
Talisman of Curiosity
10% of 268 decks
+7% synergy
Talisman of Unity
8% of 269 decks
+7% synergy
Mana Vault
8% of 269 decks
+1% synergy
Commander's Sphere
7% of 269 decks
-9% synergy
Talisman of Progress
7% of 269 decks
+3% synergy
Chrome Mox
6% of 269 decks
-0% synergy
Jeweled Lotus
6% of 259 decks
-1% synergy
Lands (50)
Ziatora's Proving Ground
100% of 5 decks
+97% synergy
Ketria Triome
100% of 5 decks
+96% synergy
Jetmir's Garden
100% of 5 decks
+96% synergy
Command Tower
93% of 269 decks
+20% synergy
Zagoth Triome
83% of 12 decks
+80% synergy
Plateau
80% of 5 decks
+77% synergy
Raugrin Triome
80% of 5 decks
+77% synergy
Badlands
80% of 5 decks
+77% synergy
Volcanic Island
80% of 5 decks
+77% synergy
Savai Triome
80% of 5 decks
+77% synergy
Xander's Lounge
80% of 5 decks
+76% synergy
Rootbound Crag
80% of 5 decks
+75% synergy
Indatha Triome
75% of 12 decks
+71% synergy
Temple Garden
72% of 269 decks
+63% synergy
Hallowed Fountain
71% of 269 decks
+61% synergy
Lush Portico
67% of 9 decks
+63% synergy
Raffine's Tower
67% of 12 decks
+63% synergy
Breeding Pool
65% of 269 decks
+56% synergy
Spara's Headquarters
65% of 236 decks
+61% synergy
Taiga
60% of 5 decks
+57% synergy
Meticulous Archive
56% of 9 decks
+53% synergy
Hedge Maze
56% of 9 decks
+51% synergy
Misty Rainforest
51% of 269 decks
+39% synergy
Overgrown Tomb
50% of 12 decks
+41% synergy
Windswept Heath
50% of 269 decks
+40% synergy
Flooded Strand
47% of 269 decks
+37% synergy
Hinterland Harbor
45% of 269 decks
+40% synergy
Sunpetal Grove
45% of 269 decks
+40% synergy
Glacial Fortress
43% of 269 decks
+38% synergy
Yavimaya Coast
42% of 269 decks
+37% synergy
Rejuvenating Springs
42% of 259 decks
+36% synergy
Watery Grave
42% of 12 decks
+31% synergy
Bountiful Promenade
41% of 268 decks
+35% synergy
Canopy Vista
39% of 269 decks
+32% synergy
Exotic Orchard
39% of 269 decks
+5% synergy
Sea of Clouds
39% of 268 decks
+33% synergy
Prairie Stream
38% of 269 decks
+30% synergy
Seaside Citadel
36% of 269 decks
+33% synergy
Bayou
33% of 12 decks
+30% synergy
Underground Sea
33% of 12 decks
+30% synergy
Woodland Cemetery
33% of 12 decks
+28% synergy
Drowned Catacomb
33% of 12 decks
+27% synergy
Godless Shrine
33% of 12 decks
+24% synergy
Brushland
30% of 269 decks
+27% synergy
Adarkar Wastes
29% of 269 decks
+26% synergy
Evolving Wilds
25% of 269 decks
+3% synergy
Azorius Chancery
23% of 269 decks
+20% synergy
Flooded Grove
23% of 269 decks
+21% synergy
Dreamroot Cascade
22% of 245 decks
+18% synergy
Selesnya Sanctuary
22% of 269 decks
+19% synergy