Appa, Steadfast Guardian, Sage of the Beyond, and Felidar Guardian

Prerequisites

• Appa, Steadfast Guardian in hand
• Sage of the Beyond on the battlefield
• Felidar Guardian in hand
• available

Steps

1. Cast Appa by paying When Appa enters, its first ability triggers, exiling Felidar Guardian with the ability to cast it later from exile
2. Cast Felidar Guardian from exile by paying
3. When Felidar Guardian enters, it triggers, blinking Appa
4. Repeat from step 2

Results

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