Hapatra, Vizier of Poisons
Cathars' Crusade
Devoted Druid

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
Devoted Druid does not have summoning sickness. Devoted Druid does not have a -1/-1 counter on it.

   Steps

How does this combo work?
1
Activate Devoted Druid by tapping it, adding .
2
Activate Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it.
3
Hapatra triggers, creating a 1/1 Snake creature token.
4
The Snake enters the battlefield, triggering Cathars' Crusade, putting a +1/+1 counter on each creature you control.
5
Repeat.

   Results

What do I get from this combo?
Infinite creature tokens
Infinite ETB
Infinite green mana
Infinite +1/+1 counters
Ghave, Guru of Spores
0.1%inclusion4 decks7.27K decks
Tayam, Luminous Enigma
0.0%inclusion3 decks7.33K decks
Atraxa, Praetors' Voice
0.0%inclusion2 decks38.3K decks
Kenrith, the Returned King
0.0%inclusion1 decks27.3K decks
Betor, Ancestor's Voice
0.0%inclusion1 decks10.1K decks
Alharu, Solemn Ritualist // Reyhan, Last of the Abzan
0.3%inclusion1 decks345 decks
Ikra Shidiqi, the Usurper // Tymna the Weaver
0.1%inclusion1 decks822 decks
Garth One-Eye
0.0%inclusion1 decks4.77K decks
Nethroi, Apex of Death
0.0%inclusion1 decks6.63K decks
Felothar, Dawn of the Abzan
0.0%inclusion1 decks4.08K decks
Tana, the Bloodsower // Tymna the Weaver
0.0%inclusion1 decks2.98K decks
Myrkul, Lord of Bones
0.0%inclusion1 decks7.23K decks
Jodah, Archmage Eternal
0.0%inclusion1 decks8.47K decks
High Synergy Cards
Yawgmoth, Thran Physician
58%inclusion11 decks19 decks
55%synergy
Zulaport Cutthroat
63%inclusion12 decks19 decks
54%synergy
Phyrexian Altar
58%inclusion11 decks19 decks
54%synergy
Ashnod's Altar
58%inclusion11 decks19 decks
51%synergy
Vizier of Remedies
47%inclusion9 decks19 decks
47%synergy
Kitchen Finks
47%inclusion9 decks19 decks
47%synergy
Ivy Lane Denizen
47%inclusion9 decks19 decks
46%synergy
Good-Fortune Unicorn
47%inclusion9 decks19 decks
45%synergy
Flourishing Defenses
42%inclusion8 decks19 decks
42%synergy
Safehold Elite
42%inclusion8 decks19 decks
42%synergy
Top Cards
Birds of Paradise
47%inclusion9 decks19 decks
20%synergy
Swords to Plowshares
47%inclusion9 decks19 decks
-14%synergy
Scurry Oak
42%inclusion8 decks19 decks
40%synergy
Avacyn's Pilgrim
42%inclusion8 decks19 decks
29%synergy
Basking Broodscale
38%inclusion6 decks16 decks
36%synergy
Nest of Scarabs
37%inclusion7 decks19 decks
36%synergy
Putrid Goblin
37%inclusion7 decks19 decks
36%synergy
Mikaeus, the Unhallowed
37%inclusion7 decks19 decks
34%synergy
Heliod, Sun-Crowned
37%inclusion7 decks19 decks
34%synergy
Mazirek, Kraul Death Priest
37%inclusion7 decks19 decks
33%synergy
Game Changers
Demonic Tutor
47%inclusion9 decks19 decks
28%synergy
Vampiric Tutor
37%inclusion7 decks19 decks
21%synergy
Aura Shards
26%inclusion5 decks19 decks
19%synergy
Worldly Tutor
26%inclusion5 decks19 decks
14%synergy
Enlightened Tutor
26%inclusion5 decks19 decks
11%synergy
Survival of the Fittest
21%inclusion4 decks19 decks
19%synergy
Gaea's Cradle
16%inclusion3 decks19 decks
10%synergy
Ancient Tomb
16%inclusion3 decks19 decks
6%synergy
Creatures
Falco Spara, Pactweaver
60%inclusion3 decks5 decks
59%synergy
Young Wolf
32%inclusion6 decks19 decks
31%synergy
Rosie Cotton of South Lane
32%inclusion6 decks19 decks
29%synergy
Winding Constrictor
32%inclusion6 decks19 decks
28%synergy
Carrion Feeder
32%inclusion6 decks19 decks
27%synergy
Pitiless Plunderer
32%inclusion6 decks19 decks
23%synergy
Blood Artist
32%inclusion6 decks19 decks
20%synergy
Eternal Witness
32%inclusion6 decks19 decks
14%synergy
Channeler Initiate
26%inclusion5 decks19 decks
26%synergy
Strangleroot Geist
26%inclusion5 decks19 decks
26%synergy
Cryptic Trilobite
26%inclusion5 decks19 decks
26%synergy
Herd Baloth
26%inclusion5 decks19 decks
25%synergy
Luminous Broodmoth
26%inclusion5 decks19 decks
24%synergy
Walking Ballista
26%inclusion5 decks19 decks
24%synergy
Cruel Celebrant
26%inclusion5 decks19 decks
19%synergy
Viscera Seer
26%inclusion5 decks19 decks
18%synergy
Rendclaw Trow
21%inclusion4 decks19 decks
21%synergy
Quillspike
21%inclusion4 decks19 decks
21%synergy
Geralf's Messenger
21%inclusion4 decks19 decks
21%synergy
Valentin, Dean of the Vein
21%inclusion4 decks19 decks
20%synergy
Obelisk Spider
21%inclusion4 decks19 decks
20%synergy
Puppeteer Clique
21%inclusion4 decks19 decks
20%synergy
Slimefoot, the Stowaway
21%inclusion4 decks19 decks
20%synergy
Chatterfang, Squirrel General
21%inclusion4 decks19 decks
16%synergy
Grand Abolisher
21%inclusion4 decks19 decks
12%synergy
Elas il-Kor, Sadistic Pilgrim
21%inclusion4 decks19 decks
11%synergy
Esper Sentinel
21%inclusion4 decks19 decks
2%synergy
Massacre Girl, Known Killer
17%inclusion3 decks18 decks
15%synergy
Heartmender
16%inclusion3 decks19 decks
16%synergy
Lesser Masticore
16%inclusion3 decks19 decks
16%synergy
Sigil Captain
16%inclusion3 decks19 decks
16%synergy
Wickerbough Elder
16%inclusion3 decks19 decks
16%synergy
Tayam, Luminous Enigma
16%inclusion3 decks19 decks
15%synergy
Children of Korlis
16%inclusion3 decks19 decks
15%synergy
Utopia Mycon
16%inclusion3 decks19 decks
15%synergy
Woodfall Primus
16%inclusion3 decks19 decks
15%synergy
Juniper Order Ranger
16%inclusion3 decks19 decks
15%synergy
Pawn of Ulamog
16%inclusion3 decks19 decks
14%synergy
Fiend Artisan
16%inclusion3 decks19 decks
14%synergy
Dina, Soul Steeper
16%inclusion3 decks19 decks
14%synergy
Archangel of Thune
16%inclusion3 decks19 decks
13%synergy
Karmic Guide
16%inclusion3 decks19 decks
12%synergy
Corpsejack Menace
16%inclusion3 decks19 decks
11%synergy
Vito, Thorn of the Dusk Rose
16%inclusion3 decks19 decks
11%synergy
Evolution Sage
16%inclusion3 decks19 decks
10%synergy
Bloom Tender
16%inclusion3 decks19 decks
8%synergy
Elves of Deep Shadow
16%inclusion3 decks19 decks
7%synergy
Mirkwood Bats
16%inclusion3 decks19 decks
6%synergy
Faeburrow Elder
16%inclusion3 decks19 decks
5%synergy
Instants
Eladamri's Call
26%inclusion5 decks19 decks
17%synergy
Assassin's Trophy
21%inclusion4 decks19 decks
-9%synergy
Heroic Intervention
21%inclusion4 decks19 decks
-9%synergy
Path to Exile
21%inclusion4 decks19 decks
-26%synergy
Chord of Calling
16%inclusion3 decks19 decks
10%synergy
Silence
16%inclusion3 decks19 decks
10%synergy
Dark Ritual
16%inclusion3 decks19 decks
-8%synergy
Sorceries
Three Visits
37%inclusion7 decks19 decks
12%synergy
Cultivate
32%inclusion6 decks19 decks
-12%synergy
Nature's Lore
26%inclusion5 decks19 decks
-5%synergy
Farseek
26%inclusion5 decks19 decks
-9%synergy
Black Sun's Zenith
21%inclusion4 decks19 decks
20%synergy
Eldritch Evolution
21%inclusion4 decks19 decks
17%synergy
Living Death
16%inclusion3 decks19 decks
10%synergy
Finale of Devastation
16%inclusion3 decks19 decks
8%synergy
Reanimate
16%inclusion3 decks19 decks
-3%synergy
Kodama's Reach
16%inclusion3 decks19 decks
-12%synergy
Utility Artifacts
Altar of Dementia
32%inclusion6 decks19 decks
29%synergy
Birthing Pod
26%inclusion5 decks19 decks
24%synergy
Skullclamp
26%inclusion5 decks19 decks
15%synergy
Blasting Station
21%inclusion4 decks19 decks
21%synergy
Ozolith, the Shattered Spire
21%inclusion4 decks19 decks
16%synergy
Luxior, Giada's Gift
16%inclusion3 decks19 decks
15%synergy
Agatha's Soul Cauldron
16%inclusion3 decks19 decks
15%synergy
The Great Henge
16%inclusion3 decks19 decks
6%synergy
Lightning Greaves
16%inclusion3 decks19 decks
-9%synergy
Enchantments
Hardened Scales
37%inclusion7 decks19 decks
27%synergy
Anointed Procession
32%inclusion6 decks19 decks
24%synergy
Sylvan Library
32%inclusion6 decks19 decks
22%synergy
Doubling Season
21%inclusion4 decks19 decks
11%synergy
Presence of Gond
16%inclusion3 decks19 decks
15%synergy
Retribution of the Ancients
16%inclusion3 decks19 decks
15%synergy
Blowfly Infestation
16%inclusion3 decks19 decks
15%synergy
Earthcraft
16%inclusion3 decks19 decks
15%synergy
Swift Reconfiguration
16%inclusion3 decks19 decks
15%synergy
Black Market
16%inclusion3 decks19 decks
12%synergy
Exquisite Blood
16%inclusion3 decks19 decks
11%synergy
Sanguine Bond
16%inclusion3 decks19 decks
10%synergy
Bastion of Remembrance
16%inclusion3 decks19 decks
9%synergy
Animate Dead
16%inclusion3 decks19 decks
7%synergy
Planeswalkers
Tyvar, Jubilant Brawler
21%inclusion4 decks19 decks
18%synergy
Utility Lands
Yavimaya, Cradle of Growth
21%inclusion4 decks19 decks
12%synergy
Phyrexian Tower
21%inclusion4 decks19 decks
12%synergy
Urborg, Tomb of Yawgmoth
21%inclusion4 decks19 decks
12%synergy
Dakmor Salvage
16%inclusion3 decks19 decks
14%synergy
Gavony Township
16%inclusion3 decks19 decks
8%synergy
Bojuka Bog
16%inclusion3 decks19 decks
-14%synergy
Mana Artifacts
Sol Ring
68%inclusion13 decks19 decks
-15%synergy
Arcane Signet
53%inclusion10 decks19 decks
-20%synergy
Talisman of Unity
16%inclusion3 decks19 decks
8%synergy
Talisman of Resilience
16%inclusion3 decks19 decks
3%synergy
Talisman of Hierarchy
16%inclusion3 decks19 decks
-10%synergy
Lands
Command Tower
100%inclusion19 decks19 decks
26%synergy
Sacred Foundry
75%inclusion3 decks4 decks
39%synergy
Blood Crypt
75%inclusion3 decks4 decks
38%synergy
Stomping Ground
75%inclusion3 decks4 decks
34%synergy
Indatha Triome
68%inclusion13 decks19 decks
40%synergy
Temple Garden
68%inclusion13 decks19 decks
30%synergy
Overgrown Tomb
68%inclusion13 decks19 decks
28%synergy
Godless Shrine
68%inclusion13 decks19 decks
28%synergy
Raffine's Tower
60%inclusion3 decks5 decks
35%synergy
Zagoth Triome
60%inclusion3 decks5 decks
32%synergy
Spara's Headquarters
60%inclusion3 decks5 decks
32%synergy
Hallowed Fountain
60%inclusion3 decks5 decks
20%synergy
Watery Grave
60%inclusion3 decks5 decks
19%synergy
Breeding Pool
60%inclusion3 decks5 decks
19%synergy
Sandsteppe Citadel
58%inclusion11 decks19 decks
32%synergy
Marsh Flats
53%inclusion10 decks19 decks
42%synergy
Verdant Catacombs
53%inclusion10 decks19 decks
42%synergy
Exotic Orchard
53%inclusion10 decks19 decks
16%synergy
Llanowar Wastes
47%inclusion9 decks19 decks
21%synergy
Windswept Heath
42%inclusion8 decks19 decks
31%synergy
Savannah
42%inclusion8 decks19 decks
29%synergy
Bayou
37%inclusion7 decks19 decks
23%synergy
Scrubland
37%inclusion7 decks19 decks
23%synergy
Brushland
37%inclusion7 decks19 decks
18%synergy
Bountiful Promenade
37%inclusion7 decks19 decks
14%synergy
Caves of Koilos
37%inclusion7 decks19 decks
7%synergy
Undergrowth Stadium
32%inclusion6 decks19 decks
8%synergy
Lush Portico
28%inclusion5 decks18 decks
19%synergy
Shadowy Backstreet
28%inclusion5 decks18 decks
18%synergy
Underground Mortuary
28%inclusion5 decks18 decks
15%synergy
City of Brass
26%inclusion5 decks19 decks
19%synergy
Wooded Foothills
26%inclusion5 decks19 decks
16%synergy
Bloodstained Mire
26%inclusion5 decks19 decks
15%synergy
Vault of Champions
26%inclusion5 decks19 decks
2%synergy
Woodland Cemetery
26%inclusion5 decks19 decks
-5%synergy
Wastewood Verge
25%inclusion3 decks12 decks
18%synergy
Bleachbone Verge
25%inclusion3 decks12 decks
17%synergy
Hushwood Verge
23%inclusion3 decks13 decks
14%synergy
Horizon Canopy
21%inclusion4 decks19 decks
16%synergy
Mana Confluence
21%inclusion4 decks19 decks
14%synergy
Arid Mesa
21%inclusion4 decks19 decks
11%synergy
Flooded Strand
21%inclusion4 decks19 decks
10%synergy
Plaza of Heroes
16%inclusion3 decks19 decks
13%synergy
Reflecting Pool
16%inclusion3 decks19 decks
11%synergy
Misty Rainforest
16%inclusion3 decks19 decks
4%synergy
Polluted Delta
16%inclusion3 decks19 decks
4%synergy
Evolving Wilds
16%inclusion3 decks19 decks
-5%synergy
Sunpetal Grove
16%inclusion3 decks19 decks
-11%synergy