edhseer Commander synergy, explained
Sorcery
Mana cost: {4}{W}
Each player puts a vow counter on a creature they control and sacrifices the rest. Each of those creatures can't attack you or planeswalkers you control for as long as it has a vow counter on it.
on-cast — puts a counter on it
on-cast —
Causes: put a counter on anything, sacrifice a permanent, a permanent is put into a graveyard from the battlefield.
Cares about: nothing.
anything leaves the battlefield — 1 card in the game can cause this (Promise of Loyalty is one).
anything is sacrificed — 3,450 cards in the game can cause this (Promise of Loyalty is one).
2 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 (Promise of Loyalty is one).
When Promise of Loyalty is cast:
424 other cards care about it too. These are the ones with the most connections.
anything gets a counter — 4,415 cards in the game can cause this (Promise of Loyalty is one).
7 other cards care about it too. These are the ones with the most connections.
a permanent is put into a graveyard from the battlefield — 5,057 cards in the game can cause this (Promise of Loyalty is one).
6 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 (Promise of Loyalty is one).
434 other cards care about it too. These are the ones with the most connections.
anything goes to a graveyard — 7,589 cards in the game can cause this (Promise of Loyalty is one).
When a card hits the graveyard thanks to Promise of Loyalty:
2 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 (Promise of Loyalty is one).
When Promise of Loyalty is cast:
5 other cards care about it too. These are the ones with the most connections.