Felidar Guardian + Vesuvan Doppelganger

Prerequisites

• You have enough mana to cast Vesuvan Doppelganger.

Steps

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

Effects

• Infinite creature ETB
• Infinite creature LTB