Appa, Steadfast Guardian, Hoarding Broodlord, and Felidar Guardian

Prerequisites

• Appa, Steadfast Guardian in hand
• Hoarding Broodlord on the battlefield
• Felidar Guardian in hand
• available

Steps

1. Cast Appa by paying
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 and another creature you control
4. Appa's second ability triggers, creating a 1/1 Ally creature token
5. When Felidar Guardian enters, it triggers, blinking Appa
6. Repeat from step 2

Results

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