Appa, Steadfast Guardian, Dazzling Theater // Prop Room, and Felidar Guardian

Prerequisites

• Appa, Steadfast Guardian in hand or in the command zone
• Dazzling Theater // Prop Room on the battlefield
• Felidar Guardian in hand
• plus commander tax if applicable available

Steps

1. Cast Appa either from your hand or from the command zone by paying plus commander tax, if applicable
2. When Appa enters, its first ability triggers, exiling Felidar Guardian with the ability to cast it later from exile
3. Cast Felidar Guardian from exile by paying and tapping Appa
4. Appa's second ability triggers, creating a 1/1 Ally creature token
5. When Felidar Guardian enters, it triggers, blinking Appa
6. When Appa enters, its first ability triggers, exiling Felidar Guardian with the ability to cast it later from exile
7. Cast Felidar Guardian from exile by paying and tapping Appa and the Ally token
8. Repeat from step 4

Results

• Infinite LTB
• Infinite ETB
• Infinite storm count
• Infinite tapped creature tokens