edhseer Commander synergy, explained
Creature — Nightmare
Mana cost: {5}{B}
Mutate {4}{B}
Whenever this creature mutates, each opponent sacrifices a creature of their choice.
triggered —
Causes: sacrifice a creature, a creature dies.
Cares about: nothing.
hits creature — 2,298 cards in the game can cause this (Chittering Harvester is one).
8 other cards care about it too. These are the ones with the most connections.
a Nightmare enters the battlefield — 151 cards in the game can cause this (Chittering Harvester is one).
a nontoken creature is sacrificed — 1,714 cards in the game can cause this (Chittering Harvester is one).
1 other card cares about it too. These are the ones with the most connections.
a creature is sacrificed — 1,741 cards in the game can cause this (Chittering Harvester is one).
When a creature is sacrificed thanks to Chittering Harvester:
22 other cards care about it too. These are the ones with the most connections.
a creature in a graveyard — 2,769 cards in the game can cause this (Chittering Harvester is one).
Chittering Harvester puts cards into the graveyard that:
799 other cards care about it too. These are the ones with the most connections.
a nontoken creature dies — 2,769 cards in the game can cause this (Chittering Harvester is one).
When a creature dies thanks to Chittering Harvester:
60 other cards care about it too. These are the ones with the most connections.
a creature dies — 2,830 cards in the game can cause this (Chittering Harvester is one).
When a creature dies thanks to Chittering Harvester:
458 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 (Chittering Harvester is one).
When Chittering Harvester attacks:
146 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 (Chittering Harvester is one).
When Chittering Harvester attacks:
219 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 (Chittering Harvester is one).
446 other cards care about it too. These are the ones with the most connections.