edhseer Commander synergy, explained
Instant
Mana cost: {U}{B}
Counter target noncreature spell. Its controller loses 2 life.
on-cast —
on-cast — makes each opponent lose 2 life
Causes: counter an artifact, counter a battle, counter an enchantment, counter an instant, counter a planeswalker, counter a sorcery, make a player lose life.
Cares about: nothing.
life is lost — 3,160 cards in the game can cause this (Countersquall is one).
When an opponent makes a player lose life thanks to Countersquall:
46 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 (Countersquall is one).
When Countersquall is cast:
427 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 (Countersquall is one).
When Countersquall is cast:
5 other cards care about it too. These are the ones with the most connections.