edhseer Commander synergy, explained
Sorcery
Mana cost: {3}{R}{R}
After the second main phase this turn, there's an additional combat phase followed by an additional main phase.
on-cast — takes an extra combat
At the beginning of that combat, untap all creatures that attacked this turn.
triggered — untaps a permanent
Rebound
Causes: untap a creature.
Cares about: nothing.
a creature untaps — 519 cards in the game can cause this (World at War is one).
a sorcery is cast — 3,720 cards in the game can cause this (World at War is one).
When World at War 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 (World at War is one).
When World at War is cast:
5 other cards care about it too. These are the ones with the most connections.