Felidar Guardian + Auton Soldier

Prerequisites

• You have enough mana to cast Auton Soldier.

Steps

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

Effects

• Infinite ETB
• Infinite LTB