Narset's Reversal + Wild Ricochet

Prerequisites

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

Steps

1. Cast any instant or sorcery by paying its mana cost.
2. Holding priority, cast Wild Ricochet by paying its mana cost, targeting the instant or sorcery cast in step 1.
3. Cast Narset's Reversal by paying {U}{U}, copying Wild Ricochet targeting the spell cast in step 1 and returning the original Wild Ricochet to your hand.
4. Cast Wild Ricochet by paying its mana cost, copying the copy of Wild Ricochet, targeting the copy of Wild Ricochet.
5. Resolve the copy of Wild Ricochet, creating a copy of Wild Ricochet targeting the copy of Wild Ricochet.
6. Repeat step 5.