Eirdu, Carrier of Dawn
Mikaeus, the Unhallowed
Umbral Collar Zealot

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield (Eirdu as Isilu, Carrier of Twilight on the battlefield).
You control another nontoken non-Human creature with base toughness 2 or greater.

   Steps

How does this combo work?
1
Activate Umbral Collar Zealot by sacrificing another nontoken non-Human creature
2
When the creature dies, its undying ability triggers, returning the creature from your graveyard to the battlefield with a +1/+1 counter on it.
3
Activate Umbral Collar Zealot by sacrificing the creature with a +1/+1 counter on it.
4
When the creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
5
Resolve the Umbral Collar Zealot abilities from step 1 and 3.
6
Repeat.

   Results

What do I get from this combo?
Infinite ETB
Infinite LTB
Infinite sacrifice triggers
Infinite death triggers
Infinite surveil
Eirdu, Carrier of Dawn
25%inclusion794 decks3.14K decks
Karai, Future of the Foot
2.4%inclusion1 decks41 decks
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New Cards
Rhys, the Evermore
34%inclusion226 decks663 decks
33%synergy
Bitterbloom Bearer
33%inclusion279 decks846 decks
31%synergy
Emptiness
32%inclusion269 decks846 decks
31%synergy
Formidable Speaker
26%inclusion6 decks23 decks
23%synergy
Twilight Diviner
17%inclusion106 decks642 decks
14%synergy
High Synergy Cards
Murderous Redcap
80%inclusion8 decks10 decks
78%synergy
Viscera Seer
85%inclusion715 decks846 decks
76%synergy
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80%inclusion8 decks10 decks
74%synergy
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78%inclusion662 decks846 decks
72%synergy
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71%synergy
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68%synergy
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Geralf's Messenger
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66%synergy
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66%synergy
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65%synergy
Top Cards
Swords to Plowshares
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64%synergy
Warren Soultrader
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65%synergy
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56%synergy
Carrion Feeder
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Cathars' Crusade
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59%synergy
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60%synergy
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16%synergy
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58%synergy
Dark Ritual
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38%synergy
Game Changers
Gamble
30%inclusion3 decks10 decks
21%synergy
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1%synergy
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4%synergy
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13%inclusion3 decks23 decks
12%synergy
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7%synergy
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3%synergy
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2%synergy
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2%synergy
Creatures
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60%synergy
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59%inclusion501 decks846 decks
56%synergy
Corpse Knight
54%inclusion461 decks846 decks
49%synergy
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52%inclusion437 decks846 decks
43%synergy
Mayhem Devil
50%inclusion5 decks10 decks
40%synergy
Sephiroth, Fabled SOLDIER
49%inclusion413 decks846 decks
46%synergy
Morbid Opportunist
48%inclusion405 decks846 decks
40%synergy
Scholar of New Horizons
47%inclusion395 decks846 decks
45%synergy
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46%inclusion393 decks846 decks
42%synergy
Yawgmoth, Thran Physician
46%inclusion389 decks846 decks
43%synergy
Butcher Ghoul
45%inclusion380 decks846 decks
45%synergy
Witch Enchanter
45%inclusion379 decks846 decks
38%synergy
Sakura-Tribe Elder
43%inclusion10 decks23 decks
27%synergy
Eternal Witness
43%inclusion10 decks23 decks
27%synergy
Elenda, the Dusk Rose
43%inclusion362 decks846 decks
37%synergy
Woe Strider
40%inclusion339 decks846 decks
38%synergy
Anger
40%inclusion4 decks10 decks
34%synergy
Midnight Reaper
36%inclusion302 decks846 decks
33%synergy
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34%synergy
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7%synergy
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16%synergy
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20%synergy
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24%synergy
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29%synergy
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26%synergy
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24%synergy
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30%inclusion3 decks10 decks
30%synergy
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29%synergy
Alesha, Who Laughs at Fate
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26%synergy
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22%synergy
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27%synergy
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23%synergy
Welcoming Vampire
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21%synergy
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23%synergy
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26%inclusion6 decks23 decks
25%synergy
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24%synergy
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24%synergy
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23%synergy
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21%synergy
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15%synergy
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14%synergy
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6%synergy
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26%inclusion220 decks846 decks
23%synergy
Syr Konrad, the Grim
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17%synergy
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19%synergy
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21%synergy
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22%inclusion185 decks846 decks
15%synergy
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18%synergy
Instants
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56%inclusion473 decks846 decks
44%synergy
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29%synergy
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37%synergy
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40%inclusion4 decks10 decks
23%synergy
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24%synergy
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19%synergy
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21%synergy
Corrupted Conviction
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22%synergy
Assassin's Trophy
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Malakir Rebirth
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15%synergy
Despark
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9%synergy
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8%synergy
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15%synergy
Culling the Weak
18%inclusion149 decks846 decks
13%synergy
Teferi's Protection
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1%synergy
Fracture
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8%synergy
Enlightened Tutor
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Stroke of Midnight
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3%synergy
Mythos of Nethroi
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11%synergy
Revitalizing Repast
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5%synergy
Eladamri's Call
13%inclusion3 decks23 decks
4%synergy
Silence
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5%synergy
Clever Concealment
10%inclusion83 decks846 decks
5%synergy
Dawn's Truce
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2%synergy
Flawless Maneuver
9.2%inclusion78 decks846 decks
-1%synergy
Saw in Half
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5%synergy
Mortify
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Imp's Mischief
8.3%inclusion70 decks846 decks
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Flare of Malice
8.0%inclusion68 decks846 decks
6%synergy
Reprieve
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3%synergy
Duty Beyond Death
7.1%inclusion60 decks846 decks
6%synergy
Cabal Ritual
6.6%inclusion56 decks846 decks
1%synergy
Entomb
6.0%inclusion51 decks846 decks
-1%synergy
Sorceries
Damn
54%inclusion453 decks846 decks
38%synergy
Victimize
50%inclusion423 decks846 decks
38%synergy
Reanimate
48%inclusion405 decks846 decks
29%synergy
Diabolic Intent
40%inclusion340 decks846 decks
32%synergy
Faithless Looting
40%inclusion4 decks10 decks
24%synergy
Ruinous Ultimatum
40%inclusion4 decks10 decks
21%synergy
Eerie Ultimatum
35%inclusion8 decks23 decks
24%synergy
Toxic Deluge
34%inclusion290 decks846 decks
16%synergy
Life from the Loam
22%inclusion5 decks23 decks
17%synergy
Night's Whisper
18%inclusion155 decks846 decks
9%synergy
Blasphemous Edict
17%inclusion148 decks846 decks
12%synergy
Three Visits
17%inclusion4 decks23 decks
-7%synergy
Nature's Lore
17%inclusion4 decks23 decks
-14%synergy
Farseek
17%inclusion4 decks23 decks
-19%synergy
Cultivate
17%inclusion4 decks23 decks
-25%synergy
Austere Command
15%inclusion129 decks846 decks
3%synergy
Agadeem's Awakening
12%inclusion101 decks846 decks
9%synergy
Living Death
11%inclusion94 decks846 decks
6%synergy
Sign in Blood
11%inclusion94 decks846 decks
2%synergy
Sevinne's Reclamation
10%inclusion83 decks846 decks
3%synergy
Dread Return
8.9%inclusion75 decks846 decks
4%synergy
Farewell
8.4%inclusion71 decks846 decks
-4%synergy
Feed the Swarm
7.3%inclusion62 decks846 decks
-9%synergy
Morningtide's Light
7.0%inclusion59 decks846 decks
6%synergy
Wrath of God
7.0%inclusion59 decks846 decks
2%synergy
Grim Tutor
6.7%inclusion57 decks846 decks
3%synergy
Vindicate
6.1%inclusion52 decks846 decks
0%synergy
Damnation
6.0%inclusion51 decks846 decks
-1%synergy
Rite of Oblivion
5.7%inclusion48 decks846 decks
4%synergy
Exsanguinate
5.7%inclusion48 decks846 decks
-1%synergy
Raise the Past
5.1%inclusion43 decks846 decks
4%synergy
Utility Artifacts
Altar of Dementia
46%inclusion389 decks846 decks
44%synergy
Lightning Greaves
43%inclusion365 decks846 decks
18%synergy
Blasting Station
29%inclusion249 decks846 decks
29%synergy
Swiftfoot Boots
24%inclusion204 decks846 decks
-3%synergy
Birthing Pod
22%inclusion5 decks23 decks
20%synergy
Oketra's Monument
16%inclusion139 decks846 decks
15%synergy
Jet Medallion
12%inclusion103 decks846 decks
9%synergy
Pearl Medallion
11%inclusion89 decks846 decks
8%synergy
The One Ring
8.5%inclusion72 decks846 decks
0%synergy
Spawning Pit
6.6%inclusion56 decks846 decks
6%synergy
Enchantments
Bastion of Remembrance
59%inclusion498 decks846 decks
52%synergy
Solemnity
57%inclusion486 decks846 decks
57%synergy
The Meathook Massacre
41%inclusion343 decks846 decks
35%synergy
Impact Tremors
40%inclusion4 decks10 decks
30%synergy
Black Market Connections
34%inclusion289 decks846 decks
22%synergy
Thran Vigil
32%inclusion272 decks846 decks
32%synergy
Bitterblossom
29%inclusion249 decks846 decks
25%synergy
Phyrexian Arena
28%inclusion236 decks846 decks
12%synergy
Grave Pact
26%inclusion218 decks846 decks
21%synergy
Insidious Roots
22%inclusion5 decks23 decks
16%synergy
Birthing Ritual
17%inclusion4 decks23 decks
17%synergy
Greater Good
17%inclusion4 decks23 decks
13%synergy
Sothera, the Supervoid
13%inclusion111 decks846 decks
12%synergy
Sylvan Library
13%inclusion3 decks23 decks
4%synergy
Funeral Room // Awakening Hall
12%inclusion105 decks846 decks
11%synergy
Land Tax
12%inclusion102 decks846 decks
6%synergy
Dictate of Erebos
10%inclusion86 decks846 decks
7%synergy
Animate Dead
10%inclusion85 decks846 decks
1%synergy
Barrensteppe Siege
9.3%inclusion79 decks846 decks
8%synergy
Grave Venerations
7.3%inclusion48 decks657 decks
5%synergy
Felidar Retreat
6.6%inclusion56 decks846 decks
1%synergy
Trouble in Pairs
6.4%inclusion54 decks846 decks
2%synergy
Blind Obedience
6.1%inclusion52 decks846 decks
0%synergy
Vampiric Rites
5.4%inclusion46 decks846 decks
3%synergy
Planeswalkers
Grist, the Hunger Tide
22%inclusion5 decks23 decks
18%synergy
Liliana, Dreadhorde General
17%inclusion144 decks846 decks
13%synergy
Elspeth, Storm Slayer
8.5%inclusion72 decks846 decks
4%synergy
Utility Lands
Phyrexian Tower
55%inclusion465 decks846 decks
46%synergy
Boseiju, Who Endures
52%inclusion12 decks23 decks
33%synergy
Bojuka Bog
46%inclusion393 decks846 decks
17%synergy
Urborg, Tomb of Yawgmoth
37%inclusion316 decks846 decks
28%synergy
High Market
33%inclusion282 decks846 decks
31%synergy
Shifting Woodland
30%inclusion7 decks23 decks
24%synergy
Reliquary Tower
28%inclusion233 decks846 decks
-2%synergy
Susur Secundi, Void Altar
23%inclusion197 decks846 decks
21%synergy
Takenuma, Abandoned Mire
21%inclusion176 decks846 decks
12%synergy
Vault of the Archangel
20%inclusion172 decks846 decks
8%synergy
Abandoned Air Temple
20%inclusion153 decks758 decks
15%synergy
Midgar, City of Mako
15%inclusion126 decks846 decks
11%synergy
Cabal Coffers
15%inclusion126 decks846 decks
5%synergy
Evendo, Waking Haven
13%inclusion3 decks23 decks
8%synergy
Gavony Township
13%inclusion3 decks23 decks
5%synergy
Eiganjo, Seat of the Empire
13%inclusion108 decks846 decks
6%synergy
Nesting Grounds
12%inclusion105 decks846 decks
10%synergy
Westvale Abbey
12%inclusion102 decks846 decks
10%synergy
Command Beacon
10%inclusion86 decks846 decks
5%synergy
Spymaster's Vault
10%inclusion81 decks846 decks
7%synergy
Urza's Saga
8.3%inclusion70 decks846 decks
1%synergy
Castle Locthwain
5.4%inclusion46 decks846 decks
2%synergy
Nykthos, Shrine to Nyx
5.3%inclusion45 decks846 decks
0%synergy
Mana Artifacts
Sol Ring
91%inclusion774 decks846 decks
8%synergy
Arcane Signet
89%inclusion755 decks846 decks
17%synergy
Talisman of Indulgence
70%inclusion7 decks10 decks
42%synergy
Talisman of Hierarchy
67%inclusion568 decks846 decks
41%synergy
Talisman of Conviction
60%inclusion6 decks10 decks
36%synergy
Orzhov Signet
57%inclusion485 decks846 decks
34%synergy
Fellwar Stone
28%inclusion238 decks846 decks
8%synergy
The Soul Stone
20%inclusion166 decks846 decks
16%synergy
Thought Vessel
15%inclusion125 decks846 decks
-3%synergy
Mind Stone
15%inclusion124 decks846 decks
0%synergy
Lotus Petal
7.0%inclusion59 decks846 decks
0%synergy
Chrome Mox
5.2%inclusion44 decks846 decks
-1%synergy
Lands
Command Tower
93%inclusion785 decks846 decks
19%synergy
Overgrown Tomb
91%inclusion21 decks23 decks
50%synergy
Temple Garden
87%inclusion20 decks23 decks
48%synergy
Godless Shrine
83%inclusion701 decks846 decks
42%synergy
Blood Crypt
80%inclusion8 decks10 decks
42%synergy
Isolated Chapel
79%inclusion665 decks846 decks
45%synergy
Savai Triome
70%inclusion7 decks10 decks
46%synergy
Sacred Foundry
70%inclusion7 decks10 decks
33%synergy
Caves of Koilos
68%inclusion578 decks846 decks
39%synergy
Shattered Sanctum
62%inclusion521 decks846 decks
47%synergy
Indatha Triome
61%inclusion14 decks23 decks
33%synergy
Dragonskull Summit
60%inclusion6 decks10 decks
25%synergy
Clifftop Retreat
60%inclusion6 decks10 decks
25%synergy
Vault of Champions
60%inclusion505 decks846 decks
36%synergy
Fetid Heath
59%inclusion501 decks846 decks
46%synergy
Lush Portico
57%inclusion13 decks23 decks
47%synergy
Bleachbone Verge
55%inclusion468 decks846 decks
47%synergy
Tainted Field
54%inclusion455 decks846 decks
41%synergy
Underground Mortuary
52%inclusion12 decks23 decks
39%synergy
Marsh Flats
52%inclusion441 decks846 decks
42%synergy
Sulfurous Springs
50%inclusion5 decks10 decks
26%synergy
Woodland Cemetery
48%inclusion11 decks23 decks
16%synergy
Shadowy Backstreet
44%inclusion373 decks846 decks
34%synergy
Luxury Suite
40%inclusion4 decks10 decks
16%synergy
Battlefield Forge
40%inclusion4 decks10 decks
11%synergy
Shineshadow Snarl
39%inclusion334 decks846 decks
27%synergy
Sunpetal Grove
39%inclusion9 decks23 decks
11%synergy
Brightclimb Pathway
39%inclusion331 decks846 decks
31%synergy
Undergrowth Stadium
35%inclusion8 decks23 decks
12%synergy
Llanowar Wastes
35%inclusion8 decks23 decks
8%synergy
Exotic Orchard
31%inclusion264 decks846 decks
-5%synergy
Overgrown Farmland
30%inclusion7 decks23 decks
13%synergy
Bountiful Promenade
30%inclusion7 decks23 decks
8%synergy
Sandsteppe Citadel
30%inclusion7 decks23 decks
4%synergy
Sunbillow Verge
30%inclusion3 decks10 decks
22%synergy
Graven Cairns
30%inclusion3 decks10 decks
20%synergy
Blazemire Verge
30%inclusion3 decks10 decks
19%synergy
Spectator Seating
30%inclusion3 decks10 decks
7%synergy
Nomad Outpost
30%inclusion3 decks10 decks
1%synergy
Smoldering Marsh
30%inclusion3 decks10 decks
-4%synergy
Orzhov Basilica
27%inclusion225 decks846 decks
12%synergy
Deathcap Glade
26%inclusion6 decks23 decks
13%synergy
Brushland
26%inclusion6 decks23 decks
7%synergy
Temple of Silence
25%inclusion209 decks846 decks
7%synergy
Savannah
22%inclusion5 decks23 decks
9%synergy
Bayou
22%inclusion5 decks23 decks
8%synergy
Desolate Mire
20%inclusion167 decks846 decks
14%synergy
Silent Clearing
20%inclusion166 decks846 decks
15%synergy
Concealed Courtyard
20%inclusion165 decks846 decks
14%synergy
Horizon Canopy
17%inclusion4 decks23 decks
13%synergy