Appa, Steadfast Guardian + Herald's Horn + Felidar Guardian + Gathering Stone

Prerequisites

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Steps

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

Effects

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