Great Unclean One

a Demon enters the battlefield — 284 cards in the game can cause this (Great Unclean One is one).

When a Demon enters thanks to Great Unclean One:

1. Blood Speaker — returns itself from the graveyard
2. Be'lakor, the Dark Master — deals its power damage

a creature token enters the battlefield — 2,799 cards in the game can cause this (Great Unclean One is one).

When a Demon enters thanks to Great Unclean One:

1. Securitron Squadron — puts a counter on a permanent
2. Anointer Priest — gains you 1 life
3. Nesting Dovehawk — puts a +1/+1 counter on itself

a creature token is created — 2,799 cards in the game can cause this (Great Unclean One is one).

1. Staff of the Storyteller — When Great Unclean One makes a Demon token, Staff of the Storyteller puts a story counter on itself

3 other cards care about it too. These are the ones with the most connections.

life is lost — 3,160 cards in the game can cause this (Great Unclean One is one).

When a permanent makes a player lose life thanks to Great Unclean One:

1. Far Fortune, End Boss — raises your speed
2. Zahur, Glory's Past — raises your speed
3. Mendicant Core, Guidelight — raises your speed
4. Aether Syphon — raises your speed
5. Vnwxt, Verbose Host — raises your speed
6. Embalmed Ascendant — raises your speed
7. Slick Imitator — raises your speed
8. Nesting Bot — raises your speed
9. Howlsquad Heavy — raises your speed
10. Hour of Victory — raises your speed

46 other cards care about it too. These are the ones with the most connections.

a token enters the battlefield — 3,710 cards in the game can cause this (Great Unclean One is one).

When a Demon enters thanks to Great Unclean One:

1. Baron Bertram Graywater — makes a token
2. Marneus Calgar — draws you 1 card
3. Belladonna Took — gains you 1 life
4. Kambal, Profiteering Mayor — makes a token
5. Lucy MacLean, Positively Armed — makes a token
6. Mister Fantastic, Reed Richards — draws you 1 card
7. Cloakwood Swarmkeeper — puts a +1/+1 counter on itself
8. Woodland Champion — puts that many +1/+1 counters on itself
9. Leonardo, the Balance — puts a counter on a creature
10. Spiritcall Enthusiast // Scrollboost — becomes prepared

3 other cards care about it too. These are the ones with the most connections.

a token is created — 3,711 cards in the game can cause this (Great Unclean One is one).

When Great Unclean One makes a Demon token:

1. Akim, the Soaring Wind — makes a token
2. Idol of Oblivion — draws you 1 card
3. Rosie Cotton of South Lane — puts a counter on a permanent
4. Mirkwood Bats — makes each opponent lose 1 life

17 other cards care about it too. These are the ones with the most connections.

anything attacks — 17,934 cards in the game can cause this (Great Unclean One is one).

When Great Unclean One attacks:

1. Temmet, Naktamun's Will — draws you 1 card
2. Grim Javelineer — gives +1/+0
3. Invisible Woman — triggers
4. Caesar, Legion's Emperor — sacrifices a creature
5. Guide of Souls — triggers
6. Campsite Cuisine — sacrifices a Food
7. Gossip's Talent — triggers
8. Banon, the Returners' Leader — draws and discards
9. Toph, Earthbending Master — puts a counter on a permanent
10. Three Dog, Galaxy News DJ — sacrifices an Aura

122 other cards care about it too. These are the ones with the most connections.

a creature attacks — 17,934 cards in the game can cause this (Great Unclean One is one).

When Great Unclean One attacks:

1. Adaptive Omnitool — searches a library
2. Anthem of Rakdos — gives +2/+0
3. Kindred Discovery — draws you 1 card
4. Invasion of New Capenna // Holy Frazzle-Cannon — puts counters on a permanent
5. Chorale of the Void — brings a card back
6. Saw — sacrifices a creature
7. Gisa's Favorite Shovel — makes an opponent sacrifice a creature
8. Ultima Weapon — kills a creature an opponent controls
9. Total War — kills a creature

195 other cards care about it too. These are the ones with the most connections.

a creature blocks — 17,934 cards in the game can cause this (Great Unclean One is one).

When Great Unclean One blocks:

1. Mage Hunters' Onslaught — makes a player lose 1 life
2. Tide of War — sacrifices a creature
3. Dead-Iron Sledge — kills a creature
4. Dwindle — kills a creature

26 other cards care about it too. These are the ones with the most connections.

a creature enters the battlefield — 19,800 cards in the game can cause this (Great Unclean One is one).

1. Slash, Reptile Rampager — When a Demon enters thanks to Great Unclean One, Slash, Reptile Rampager deals 2 damage
2. Ray Fillet, Wave Warrior — When Great Unclean One enters, Ray Fillet, Wave Warrior puts a counter on itself
3. The Neutrinos — When a Demon enters thanks to Great Unclean One, The Neutrinos gets +1/+0
4. Wingnut, Bat on the Belfry — When a Demon enters thanks to Great Unclean One, Wingnut, Bat on the Belfry grants flying, haste and menace
5. Aetherstorm Roc — When a Demon enters thanks to Great Unclean One, Aetherstorm Roc puts a counter on a permanent you control
6. Raphael, Most Attitude — When a Demon enters thanks to Great Unclean One, Raphael, Most Attitude exiles a card from your library

336 other cards care about it too. These are the ones with the most connections.

anything enters the battlefield — 26,499 cards in the game can cause this (Great Unclean One is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When a Demon enters thanks to Great Unclean One, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

52 other cards care about it too. These are the ones with the most connections.