edhseer Commander synergy, explained
Instant
Mana cost: {2}{W}
Creatures you control gain indestructible until end of turn.
on-cast — grants a keyword
If you cast this spell during your main phase, put a +1/+1 counter on each of those creatures and they gain vigilance until end of turn.
on-cast — puts a counter on it
on-cast — grants a keyword
Causes: put a counter on a creature.
Cares about: nothing.
a creature gets a counter — 2,691 cards in the game can cause this (Unbreakable Formation is one).
When a creature gets a counter thanks to Unbreakable Formation:
31 other cards care about it too. These are the ones with the most connections.
an instant is cast — 3,931 cards in the game can cause this (Unbreakable Formation is one).
When Unbreakable Formation is cast:
427 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 (Unbreakable Formation is one).
7 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 (Unbreakable Formation is one).
When Unbreakable Formation is cast:
5 other cards care about it too. These are the ones with the most connections.