edhseer Commander synergy, explained
Creature — Beast Horror Spirit
Mana cost: {2}{B}{B}
When this creature enters, target creature an opponent controls gets -X/-X until end of turn, where X is the number of permanent cards in your graveyard.
triggered — shrinks a creature
Causes: nothing.
Cares about: a permanent in a graveyard.
put a permanent into a graveyard — 173 cards in the game can cause this.
163 other cards cause it too. These are the ones with the most connections.
a Horror deals combat damage — 382 cards in the game can cause this (Chupacabra Echo is one).
a Beast creature is cast — 587 cards in the game can cause this (Chupacabra Echo is one).
a Beast enters the battlefield — 632 cards in the game can cause this (Chupacabra Echo is one).
When Chupacabra Echo enters:
a nontoken Spirit deals combat damage — 725 cards in the game can cause this (Chupacabra Echo is one).
a nontoken Spirit enters the battlefield — 727 cards in the game can cause this (Chupacabra Echo is one).
a Spirit enters the battlefield — 863 cards in the game can cause this (Chupacabra Echo is one).
When Chupacabra Echo enters:
anything attacks — 17,934 cards in the game can cause this (Chupacabra Echo is one).
When Chupacabra Echo attacks:
111 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 (Chupacabra Echo is one).
When Chupacabra Echo attacks:
180 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 (Chupacabra Echo is one).
When Chupacabra Echo blocks:
18 other cards care about it too. These are the ones with the most connections.
a nontoken creature attacks — 17,934 cards in the game can cause this (Chupacabra Echo is one).
When Chupacabra Echo attacks:
a creature deals combat damage — 17,934 cards in the game can cause this (Chupacabra Echo is one).
When Chupacabra Echo deals combat damage:
194 other cards care about it too. These are the ones with the most connections.
a creature is cast — 18,010 cards in the game can cause this (Chupacabra Echo is one).
When Chupacabra Echo is cast:
86 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 (Chupacabra Echo is one).
When Chupacabra Echo enters:
301 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 (Chupacabra Echo is one).
39 other cards care about it too. These are the ones with the most connections.