Carnage, Crimson Chaos + Glasspool Mimic // Glasspool Shore

Carnage, Crimson Chaos

Glasspool Mimic // Glasspool Shore

How it works

1. Cast Carnage by paying 2. When it enters, it triggers, returning Glasspool Mimic from your graveyard to the battlefield as a copy of Carnage.
2. Put Glasspool Mimic into your graveyard due to the legend rule.
3. Glasspool Mimic's enter-the-battlefield ability triggers, returning itself from your graveyard to the battlefield as a copy of Carnage.
4. Repeat from step 2.