edhseer Commander synergy, explained
Instant
Mana cost: {4}{U}{U}
Target artifact or creature becomes a copy of another target artifact or creature.
on-cast — copies a permanent
Causes: copy an artifact, copy a creature.
Cares about: nothing.
an instant is cast — 3,931 cards in the game can cause this (True Polymorph is one).
When True Polymorph is cast:
427 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 (True Polymorph is one).
When True Polymorph is cast:
5 other cards care about it too. These are the ones with the most connections.