Yahenni, Undying Partisan

anything leaves the battlefield — 1 card in Yahenni's colors can cause this (Yahenni is one).

1. Chainer, Dementia Master — When Chainer, Dementia Master leaves the battlefield thanks to Yahenni, Undying Partisan, it exiles a Nightmare

a Vampire attacks — 267 cards in Yahenni's colors can cause this (Yahenni is one).

When Yahenni, Undying Partisan attacks:

1. Glass-Cast Heart — makes a token
2. Sanctum Seeker — makes each opponent lose 1 life

a Vampire creature is cast — 267 cards in Yahenni's colors can cause this (Yahenni is one).

1. Bloodlord of Vaasgoth — When Yahenni, Undying Partisan is cast, Bloodlord of Vaasgoth grants bloodthirst

a nontoken creature is sacrificed — 698 cards in Yahenni's colors can cause this (Yahenni is one).

When you sacrifice another creature to Yahenni, Undying Partisan:

1. Fumulus, the Infestation — makes a token
2. Bag of Devouring — exiles it

a creature is sacrificed — 699 cards in Yahenni's colors can cause this (Yahenni is one).

When you sacrifice another creature to Yahenni, Undying Partisan:

1. Smothering Abomination — draws you 1 card
2. Plumb the Forbidden — copies a spell
3. Zodiark, Umbral God — puts a +1/+1 counter on itself
4. Evin, Waterdeep Opportunist — makes a token
5. Kingpin, Wilson Fisk — makes 2 tokens
6. Mortician Beetle — puts a +1/+1 counter on itself
7. Lightless Evangel — puts a +1/+1 counter on itself
8. Cabal Therapist — triggers
9. Prowling Geistcatcher — exiles it

a creature gets a counter — 542 cards in Yahenni's colors can cause this (Yahenni is one).

When Yahenni, Undying Partisan gets a counter:

1. Bold Plagiarist — puts counters on a permanent
2. Omarthis, Ghostfire Initiate — puts a counter on a permanent

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

a creature in a graveyard — 1,237 cards in Yahenni's colors can cause this (Yahenni is one).

Yahenni, Undying Partisan puts cards into the:

1. Liliana the Repentant — graveyard that Liliana the Repentant can bring back
2. Sword of Light and Shadow — graveyard that Sword of Light and Shadow can bring back
3. Necromantic Thirst — graveyard that Necromantic Thirst can bring back
4. Ruthless Technomancer — graveyard that Ruthless Technomancer can bring back
5. Forum Necroscribe — graveyard that Forum Necroscribe can bring back
6. The Deck of Many Things — graveyard that The Deck of Many Things can bring back
7. Polluted Cistern // Dim Oubliette — graveyard that Polluted Cistern // Dim Oubliette can bring back
8. Sibsig Muckdraggers — graveyard that Sibsig Muckdraggers can bring back
9. The Cauldron of Eternity — graveyard, and The Cauldron of Eternity gets bigger
10. Zuko's Conviction — graveyard that Zuko's Conviction can bring back

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

a nontoken creature dies — 1,237 cards in Yahenni's colors can cause this (Yahenni is one).

When you sacrifice another creature to Yahenni, Undying Partisan:

1. Avacyn, Angel of Horror — brings a card back
2. Nim Deathmantle — brings a card back
3. Decaying Soil — brings a card back
4. High-Society Hunter — draws you 1 card
5. Gate to the Afterlife — gains you 1 life
6. Voldaren Bloodcaster // Bloodbat Summoner — makes a token
7. Liliana, Heretical Healer // Liliana, Defiant Necromancer — flickers itself
8. Body Launderer — draws and discards
9. Nightmare Shepherd — exiles it
10. Homicide Investigator — triggers

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

a creature dies — 1,255 cards in Yahenni's colors can cause this.

1. Shriveling Rot — When you sacrifice another creature to Yahenni, Undying Partisan, Shriveling Rot makes a player lose life equal to its toughness
2. Meathook Massacre II — When you sacrifice another creature to Yahenni, Undying Partisan, Meathook Massacre II brings a card back
3. Ashnod's Intervention — When you sacrifice another creature to Yahenni, Undying Partisan, Ashnod's Intervention brings a card back
4. Malakir Rebirth // Malakir Mire — When you sacrifice another creature to Yahenni, Undying Partisan, Malakir Rebirth // Malakir Mire brings a card back
5. Shirei, Shizo's Caretaker — When you sacrifice another creature to Yahenni, Undying Partisan, Shirei, Shizo's Caretaker brings a card back
6. Oathkeeper, Takeno's Daisho — When you sacrifice another creature to Yahenni, Undying Partisan, Oathkeeper, Takeno's Daisho brings a card back
7. Undying Malice — When you sacrifice another creature to Yahenni, Undying Partisan, Undying Malice brings a card back
8. Feign Death — When you sacrifice another creature to Yahenni, Undying Partisan, Feign Death brings a card back
9. Hornet Cannon — When an Insect dies thanks to Hornet Cannon, Yahenni, Undying Partisan puts a +1/+1 counter on itself
10. Drudge Spell — When a Skeleton dies thanks to Drudge Spell, Yahenni, Undying Partisan puts a +1/+1 counter on itself
11. Amulet of Safekeeping — When a creature dies thanks to Amulet of Safekeeping, Yahenni, Undying Partisan puts a +1/+1 counter on itself
12. Bloodline Culling — When a creature dies thanks to Bloodline Culling, Yahenni, Undying Partisan puts a +1/+1 counter on itself
13. Illness in the Ranks — When a creature dies thanks to Illness in the Ranks, Yahenni, Undying Partisan puts a +1/+1 counter on itself
14. Virulent Plague — When a creature dies thanks to Virulent Plague, Yahenni, Undying Partisan puts a +1/+1 counter on itself
15. Treacherous Vampire — When Treacherous Vampire dies thanks to Yahenni, Undying Partisan, it makes you lose life
16. Treacherous Werewolf — When Treacherous Werewolf dies thanks to Yahenni, Undying Partisan, it makes you lose life

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

a creature goes to a graveyard — 1,280 cards in Yahenni's colors can cause this (Yahenni is one).

1. Robot Domination — When a creature hits the graveyard thanks to Yahenni, Undying Partisan, Robot Domination draws you 1 card

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

anything is sacrificed — 1,292 cards in Yahenni's colors can cause this (Yahenni is one).

1. Gorbag of Minas Morgul — When you sacrifice another creature to Yahenni, Undying Partisan, Gorbag of Minas Morgul triggers

1 other card cares about it too. These are the ones with the most connections.

a nontoken creature leaves the battlefield — 1,393 cards in Yahenni's colors can cause this (Yahenni is one).

When you sacrifice another creature to Yahenni, Undying Partisan:

1. Splinter, the Mentor — makes a token
2. Rat King, Pale Piper — makes a token

a creature leaves the battlefield — 1,418 cards in Yahenni's colors can cause this (Yahenni is one).

1. Ninja Teen — When you sacrifice another creature to Yahenni, Undying Partisan, Ninja Teen makes each opponent lose 1 life
2. Rapacious Guest — When Rapacious Guest leaves the battlefield thanks to Yahenni, Undying Partisan, it makes each opponent lose life equal to its power
3. Extractor Demon — When you sacrifice another creature to Yahenni, Undying Partisan, Extractor Demon mills a card
4. Traveling Plague — When you sacrifice another creature to Yahenni, Undying Partisan, Traveling Plague returns itself from the graveyard
5. Funeral March — When you sacrifice another creature to Yahenni, Undying Partisan, Funeral March makes a player sacrifice a creature

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

a card in a graveyard — 2,555 cards in Yahenni's colors can cause this (Yahenni is one).

Yahenni, Undying Partisan:

1. Repentant Vampire — fills your graveyard toward the 7 or more cards Repentant Vampire needs
2. Heart-Shaped Herb — puts cards into the graveyard that Heart-Shaped Herb can bring back

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

a creature attacks — 3,478 cards in Yahenni's colors can cause this (Yahenni is one).

1. Chorale of the Void — When Yahenni, Undying Partisan attacks, Chorale of the Void brings a card back

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

anything attacks — 3,478 cards in Yahenni's colors can cause this (Yahenni is one).

1. Grim Javelineer — When Yahenni, Undying Partisan attacks, Grim Javelineer gives +1/+0

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