Gonti's Aether Heart | Mishra, Eminent One | Panharmonicon

Cards

At the beginning of combat,
Mishra triggers, creating a 4/4 artifact creature token copy of
Gonti's Aether Heart named
Mishra's Warform.
When
Mishra's Warform enters the battlefield, it and
Gonti's Aether Heart trigger twice each, causing you to get eight ({E} magic symbol) .
Activate
Mishra's Warform by paying eight ({E} magic symbol) and exiling it, taking an extra turn after this one.
Repeat each turn.