Hulking Metamorph + Felidar Guardian

Prerequisites

• You have enough mana to cast Hulking Metamorph.

Steps

1. 1Cast Hulking Metamorph by paying its mana cost, choosing to have it enter the battlefield as a copy of Felidar Guardian
2. 2When Hulking Metamorph enters the battlefield, it triggers, blinking Felidar Guardian.
3. 3When Felidar Guardian enters the battlefield, it triggers, blinking Hulking Metamorph. Choose to have Hulking Metamorph enter the battlefield as a copy of Felidar Guardian.
4. 4Repeat from step 2.

Effects

• Infinite creature ETB
• Infinite creature LTB