edhseer Commander synergy, explained
Instant
Mana cost: {2}{U}
Counter target spell unless its controller pays {1} for each card in your graveyard.
on-cast —
Cycling {2}
Causes: counter a spell.
Cares about: nothing.
an instant is discarded — 100 cards in the game can cause this (Countervailing Winds is one).
When Countervailing Winds makes a player discard a card:
1 other card cares about it too. These are the ones with the most connections.
a card is discarded — 2,042 cards in the game can cause this (Countervailing Winds is one).
When Countervailing Winds makes a player discard a card:
51 other cards care about it too. These are the ones with the most connections.
a card is drawn — 3,815 cards in the game can cause this (Countervailing Winds is one).
When Countervailing Winds makes a player draw a card:
57 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 (Countervailing Winds is one).
When Countervailing Winds is cast:
427 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 (Countervailing Winds is one).
434 other cards care about it too. These are the ones with the most connections.
anything goes to a graveyard — 7,589 cards in the game can cause this (Countervailing Winds is one).
When Countervailing Winds hits the graveyard:
7 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 (Countervailing Winds is one).
When Countervailing Winds is cast:
5 other cards care about it too. These are the ones with the most connections.