edhseer Commander synergy, explained
Instant
Mana cost: {1}{B}
Return to your hand all cards in your graveyard that you cycled or discarded this turn.
on-cast — brings a card back
Causes: anything leaves a graveyard.
Cares about: a card in a graveyard.
anything leaves a graveyard — 2,503 cards in the game can cause this (Shadow of the Grave is one).
When Shadow of the Grave 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 (Shadow of the Grave is one).
When Shadow of the Grave 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 (Shadow of the Grave 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 (Shadow of the Grave is one).
When Shadow of the Grave is cast:
5 other cards care about it too. These are the ones with the most connections.