edhseer Commander synergy, explained
Instant
Mana cost: {2}{U}
This spell costs {1}{U} more to cast for each target beyond the first.
on-cast — taxes the table
Choose a creature on the battlefield. Any number of target creatures you control each become a copy of that creature until end of turn.
on-cast — copies a permanent
Causes: copy a creature.
Cares about: nothing.
an instant is cast — 3,931 cards in the game can cause this (Polymorphous Rush is one).
When Polymorphous Rush 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 (Polymorphous Rush is one).
When Polymorphous Rush is cast:
5 other cards care about it too. These are the ones with the most connections.