edhseer Commander synergy, explained
Sorcery
Mana cost: {2}{U}
Return target sorcery card from your graveyard to your hand.
on-cast — brings a card back
Causes: a sorcery leaves a graveyard.
Cares about: a sorcery in a graveyard.
a sorcery in a graveyard — 2 cards in the game can cause this (Sage's Knowledge is one).
1 other card cares about it too. These are the ones with the most connections.
anything leaves a graveyard — 2,503 cards in the game can cause this (Sage's Knowledge is one).
When Sage's Knowledge leaves a graveyard:
13 other cards care about it too. These are the ones with the most connections.
a sorcery is cast — 3,720 cards in the game can cause this (Sage's Knowledge is one).
When Sage's Knowledge is cast:
424 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 (Sage's Knowledge is one).
When Sage's Knowledge is cast:
5 other cards care about it too. These are the ones with the most connections.