How it works
Prerequisites
- You have an additional instant or sorcery card in hand with valid targets as applicable.
Steps
- 1Cast any instant or sorcery by paying its mana cost.
- 2Holding priority, cast Insidious Will by paying its mana cost, targeting the instant or sorcery cast in step 1.
- 3Cast Narset's Reversal by paying , copying Insidious Will targeting the spell cast in step 1 and returning the original Insidious Will to your hand.
- 4Cast Insidious Will by paying its mana cost, copying the copy of Insidious Will, targeting the copy of Insidious Will.
- 5Resolve the copy of Insidious Will, creating a copy of Insidious Will targeting the copy of Insidious Will.
- 6Repeat step 5.
Commander brackets
In which brackets is this combo allowed, per Spellbook's Exhibition tier?