edhseer Commander synergy, explained
Instant
Mana cost: {0}
Counter target spell.
on-cast —
At the beginning of your next upkeep, pay {3}{U}{U}. If you don't, you lose the game.
triggered —
Causes: counter a spell, a player loses the game.
Cares about: nothing.
a player loses the game — 41 cards in the game can cause this (Pact of Negation is one).
5 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 (Pact of Negation is one).
When Pact of Negation 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 (Pact of Negation is one).
When Pact of Negation is cast:
5 other cards care about it too. These are the ones with the most connections.