edhseer Commander synergy, explained
Instant
Mana cost: {2}{B}{B}
You may sacrifice a nontoken black creature rather than pay this spell's mana cost.
on-cast —
Each opponent sacrifices a creature or planeswalker with the greatest mana value among creatures and planeswalkers they control.
on-cast —
Causes: sacrifice a nontoken creature, a nontoken creature dies, sacrifice a creature, sacrifice a planeswalker, a creature dies, a planeswalker is put into a graveyard from the battlefield.
Cares about: a creature to sacrifice.
anything leaves the battlefield — 1 card in the game can cause this (Flare of Malice is one).
1 other card cares about it too. These are the ones with the most connections.
a planeswalker in a graveyard — 232 cards in the game can cause this (Flare of Malice is one).
Flare of Malice puts cards into the graveyard that:
65 other cards care about it too. These are the ones with the most connections.
a planeswalker is put into a graveyard from the battlefield — 232 cards in the game can cause this (Flare of Malice is one).
1 other card cares about it too. These are the ones with the most connections.
a nontoken creature is sacrificed — 1,714 cards in the game can cause this (Flare of Malice is one).
When a creature is sacrificed thanks to Flare of Malice:
a creature is sacrificed — 1,741 cards in the game can cause this (Flare of Malice is one).
When a creature is sacrificed thanks to Flare of Malice:
19 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 (Flare of Malice is one).
Flare of Malice 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 (Flare of Malice is one).
When a creature dies thanks to Flare of Malice:
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 (Flare of Malice is one).
When a creature dies thanks to Flare of Malice:
456 other cards care about it too. These are the ones with the most connections.
an instant is cast — 3,931 cards in the game can cause this (Flare of Malice is one).
When Flare of Malice is cast:
434 other cards care about it too. These are the ones with the most connections.
a creature leaves the battlefield — 4,238 cards in the game can cause this (Flare of Malice is one).
32 other cards care about it too. These are the ones with the most connections.
a card in a graveyard — 7,589 cards in the game can cause this (Flare of Malice is one).
Flare of Malice fills your graveyard toward the:
442 other cards care about it too. These are the ones with the most connections.