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.
Cast Appa by paying its mana cost.
When Appa enters, it triggers, exiling Restoration Angel with the ability to cast it from exile later.
Cast Restoration Angel from exile by paying {0} due to Commander Liara Portyr.
When Restoration Angel enters, it triggers, blinking Appa
Repeat from step 3.

Infinite artifact ETB

Infinite artifact LTB

Infinite creature LTB

Infinite creature ETB

Infinite storm count

Infinite creature tokens

Infinite blinking of nonland permanents

Commander Liara Portyr

Appa, Steadfast Guardian

Restoration Angel

Declare at least two creatures you control as attackers, attacking at least two opponent.
Liara triggers, causing all spells you cast from exile this turn to cost at least {2} less, and exiling at least two cards from the top of your library and allowing you to play them this turn.
Move to your post-combat main phase.
Activate Ashnod's Altar by sacrificing Eternal Scourge, adding {C}{C}.
Eternal Scourge is exiled instead of being put into your graveyard due to Rest in Peace.
Cast Eternal Scourge from exile by paying {1}.
Repeat from step 4.

Infinite colorless mana

Infinite creature sacrifice triggers

Eternal Scourge

Ashnod's Altar

Rest in Peace

Declare at least two creatures you control as attackers, attacking at least two opponent.
Liara triggers, causing all spells you cast from exile this turn to cost at least {2} less, and exiling at least two cards from the top of your library and allowing you to play them this turn.
Move to your post-combat main phase.
Activate Ashnod's Altar by sacrificing Eternal Scourge, adding {C}{C}.
Mimic Vat triggers, exiling Eternal Scourge from your graveyard.
Cast Eternal Scourge from exile by paying {1}.
Repeat from step 4.

Infinite death triggers

Mimic Vat

Declare at least two creatures you control as attackers, attacking at least two opponent.
Liara triggers, causing all spells you cast from exile this turn to cost at least {2} less, and exiling at least two cards from the top of your library and allowing you to play them this turn.
Move to your post-combat main phase.
Activate Ashnod's Altar by sacrificing Eternal Scourge, adding {C}{C}.
Planar Void triggers, exiling Eternal Scourge from your graveyard.
Cast Eternal Scourge from exile by paying {1}.
Repeat from step 4.

Planar Void

Combos with "Commander Liara Portyr"