Narset's Reversal + Return the Favor

Prerequisites

• You have an additional instant or sorcery card in hand with valid targets as applicable.

Steps

1. 1Cast any instant or sorcery by paying its mana cost.
2. 2Holding priority, cast Return the Favor by paying plus an additional to choose its first mode, targeting the instant or sorcery cast in step 1.
3. 3Cast Narset's Reversal by paying , copying Return the Favor targeting the spell cast in step 1 and returning the original Return the Favor to your hand.
4. 4Cast Return the Favor by paying its mana cost, copying the copy of Return the Favor, targeting the copy of Return the Favor.
5. 5Resolve the copy of Return the Favor, creating a copy of Return the Favor targeting the copy of Return the Favor.
6. 6Repeat step 5.

Effects

• Infinite magecraft triggers