edhseer Commander synergy, explained
Instant
Mana cost: {3}{G}
Return target card from your graveyard to your hand. Put up to one other target card from your graveyard on top of your library. Exile Once and Future.
on-cast — brings a card back
on-cast — brings a card back
on-cast —
If at least three green mana was spent to cast this spell, instead return those cards to your hand and exile Once and Future.
on-cast — brings a card back
on-cast —
Causes: anything leaves a graveyard, exile a card, anything leaves the battlefield.
Cares about: a card in a graveyard.
anything is exiled — 2,497 cards in the game can cause this (Once and Future is one).
anything leaves a graveyard — 2,503 cards in the game can cause this (Once and Future is one).
When Once and Future leaves a graveyard:
13 other cards care about it too. These are the ones with the most connections.
an instant it makes cheaper to cast — 3,773 cards in the game can cause this.
3,772 other cards cause it too. These are the ones with the most connections.
an instant is cast — 3,931 cards in the game can cause this (Once and Future is one).
When Once and Future 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 (Once and Future is one).
7,579 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 (Once and Future is one).
When Once and Future is cast:
5 other cards care about it too. These are the ones with the most connections.