edhseer Commander synergy, explained
Instant
Mana cost: {3}{U}{U}
For each attacking creature, its owner puts it on their choice of the top or bottom of their library.
on-cast —
Causes: a creature leaves the battlefield.
Cares about: nothing.
an instant is cast — 3,931 cards in the game can cause this (Aetherspouts is one).
When Aetherspouts is cast:
427 other cards care about it too. These are the ones with the most connections.
a nontoken creature leaves the battlefield — 4,133 cards in the game can cause this (Aetherspouts is one).
When a creature leaves the battlefield thanks to Aetherspouts:
a creature leaves the battlefield — 4,238 cards in the game can cause this (Aetherspouts is one).
When a creature leaves the battlefield thanks to Aetherspouts:
19 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 (Aetherspouts is one).
When Aetherspouts is cast:
5 other cards care about it too. These are the ones with the most connections.