Appa, Steadfast Guardian + Sage of the Beyond + Restoration Angel

Appa, Steadfast Guardian

Sage of the Beyond

Restoration Angel

How it works

1. Cast Appa by paying 2
2. When Appa enters, its first ability triggers, exiling Restoration Angel with the ability to cast it later from exile.
3. Cast Restoration Angel from exile by paying 0.
4. When Restoration Angel enters, it triggers, blinking Appa.
5. Repeat from step 2.