Appa, Steadfast Guardian, Pearl Medallion, Icewind Stalwart, and Stormscape Familiar

Prerequisites

• Appa, Steadfast Guardian in hand
• Pearl Medallion on the battlefield
• Icewind Stalwart on the battlefield
• Stormscape Familiar on the battlefield
• available

Steps

1. Cast Appa by paying When Appa enters, its first ability triggers, exiling Icewind Stalwart with the ability to cast it later from exile
2. Cast Icewind Stalwart from exile by paying
3. Appa's second ability triggers, creating a 1/1 Ally creature token When Icewind Stalwart enters, it triggers, blinking Appa
4. Repeat from step 2

Results

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