edhseer Commander synergy, explained
Instant
Mana cost: {4}{B}{B}
You may exile the top three black cards of your graveyard rather than pay this spell's mana cost.
on-cast —
Spinning Darkness deals 3 damage to target nonblack creature. You gain 3 life.
on-cast — deals 3 damage
on-cast — gains you 3 life
Causes: exile a card, anything leaves a graveyard, a creature deals noncombat damage, gain life.
Cares about: nothing.
life is gained — 2,076 cards in the game can cause this (Spinning Darkness is one).
When Spinning Darkness gains life:
84 other cards care about it too. These are the ones with the most connections.
anything is exiled — 2,497 cards in the game can cause this (Spinning Darkness is one).
anything leaves a graveyard — 2,503 cards in the game can cause this (Spinning Darkness is one).
When Spinning Darkness leaves a graveyard:
13 other cards care about it too. These are the ones with the most connections.
anything deals noncombat damage — 3,068 cards in the game can cause this (Spinning Darkness is one).
When Spinning Darkness deals noncombat damage:
36 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 (Spinning Darkness is one).
When Spinning Darkness is cast:
427 other cards care about it too. These are the ones with the most connections.
a creature is dealt damage — 18,923 cards in the game can cause this (Spinning Darkness is one).
When a creature is dealt damage thanks to Spinning Darkness:
17 other cards care about it too. These are the ones with the most connections.
anything is cast — 31,128 cards in the game can cause this (Spinning Darkness is one).
When Spinning Darkness is cast:
5 other cards care about it too. These are the ones with the most connections.