Wildfire Eternal | Savage Beating | Mirage Phalanx

(and one other card)

At the beginning of your combat phase,
Mirage Phalanx and
Ardent Elementalist each trigger, creating a token copy of
Ardent Elementalist and
Mirage Phalanx with haste and without soulbond.
When the token
Ardent Elementalist enters the battlefield, it triggers, returning
Savage Beating to your hand from your graveyard.
Declare
Wildfire Eternal as an attacker.
When
Wildfire Eternal is not blocked, it triggers, casting
Savage Beating from your hand without paying its mana cost.
Resolve
Savage Beating, causing you to untap all creatures you control and to get an additional combat phase after this one.
At the end of your combat phase, the
Mirage Phalanx and
Ardent Elementalist tokens trigger, exiling themselves.
Repeat each combat phase.