Commander Liara Portyr + Icewind Stalwart + Aang, the Last Airbender

Commander Liara Portyr

Icewind Stalwart

Aang, the Last Airbender

How it works

1. Declare two creatures as attackers, ensuring to attack two different opponents. Commander Liara Portyr triggers, causing spells you cast from exile this turn to cost 2 less to cast.
2. Cast Aang by paying its mana cost.
3. When Aang enters, it triggers, exiling Icewind Stalwart with the ability to cast it from exile later.
4. Cast Icewind Stalwart from exile by paying 0 due to Commander Liara Portyr.
5. When Icewind Stalwart enters, it triggers, blinking Aang
6. Repeat from step 3.