edhseer Commander synergy, explained
Instant
Mana cost: {3}{U}
Return to their owners' hands all creatures with toughness less than or equal to the number of Islands you control.
on-cast — bounce
Causes: a creature leaves the battlefield.
Cares about: nothing.
anything leaves the battlefield — 1 card in the game can cause this (Engulf the Shore is one).
an instant is cast — 3,931 cards in the game can cause this (Engulf the Shore is one).
When Engulf the Shore 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 (Engulf the Shore is one).
When a creature leaves the battlefield thanks to Engulf the Shore:
a creature leaves the battlefield — 4,238 cards in the game can cause this (Engulf the Shore is one).
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 (Engulf the Shore is one).
When Engulf the Shore is cast:
5 other cards care about it too. These are the ones with the most connections.