Appa, Steadfast Guardian + Will, Scion of Peace + Restoration Angel

Appa, Steadfast Guardian

Will, Scion of Peace

Restoration Angel

How it works

1. Activate Will by tapping it, causing white and blue spells you cast to cost 1 less for each life you've gained this turn.
2. Cast Appa by paying
3. When Appa enters, its first ability triggers, exiling Restoration Angel with the ability to cast it later from exile.
4. Cast Restoration Angel from exile by paying 0.
5. Appa's second ability triggers, creating a 1/1 Ally creature token.
6. When Restoration Angel enters, it triggers, blinking Appa.
7. Repeat from step 3.