Appa, Steadfast Guardian + Wispweaver Angel + Stone Calendar + The Wind Crystal

Appa, Steadfast Guardian

Wispweaver Angel

Stone Calendar

The Wind Crystal

How it works

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 Wispweaver Angel with the ability to cast it later from exile.
3. Cast Wispweaver Angel from exile by paying 0.
4. Appa's second ability triggers, creating a 1/1 Ally creature token
5. When Wispweaver Angel enters, it triggers, blinking Appa.
6. Repeat from step 2.

This breathtaking loop is orchestrated by Appa, Steadfast Guardian and Wispweaver Angel, which continuously blink one another to generate infinite entry triggers and token armies. To make this engine free to run, Stone Calendar and The Wind Crystal team up to provide a massive cumulative cost reduction of {2} on spells cast from exile, exactly offsetting the alternate casting cost granted by Appa's airbending ability.