edhseer Commander synergy, explained
Sorcery
Mana cost: {3}{B}
Each player returns all creature cards from their graveyard to their hand.
on-cast — brings a card back
Causes: a creature leaves a graveyard.
Cares about: a creature in a graveyard.
a creature leaves a graveyard — 1,302 cards in the game can cause this (Empty the Catacombs is one).
When a creature leaves a graveyard thanks to Empty the Catacombs:
3 other cards care about it too. These are the ones with the most connections.
anything leaves a graveyard — 2,503 cards in the game can cause this (Empty the Catacombs is one).
When a creature leaves a graveyard thanks to Empty the Catacombs:
13 other cards care about it too. These are the ones with the most connections.
a creature in a graveyard — 2,769 cards in the game can cause this (Empty the Catacombs is one).
2,759 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 (Empty the Catacombs is one).
When Empty the Catacombs 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 (Empty the Catacombs is one).
When Empty the Catacombs is cast:
5 other cards care about it too. These are the ones with the most connections.