Mishra, Eminent One | Dutiful Replicator

Cards

All permanents on the battlefield (
Machine God's Effigy as a copy of
Dutiful Replicator).

At the beginning of your combat phase,
Mishra triggers, creating a token copy of the
Machine God's Effigy (which is a copy of
Dutiful Replicator), except it is a 4/4 Construct artifact creature with haste named
Mishra's Warform.
When
Mishra's Warform enters the battlefield, its
Dutiful Replicator ability triggers.
Holding priority, activate
Mishra's Warform using the
Machine God's Effigy ability by tapping it, adding ({U} magic symbol) .
Resolve the
Mishra's Warform trigger from step 2, causing you to pay ({1} magic symbol) to create a token copy of
Mishra's Warform.
Repeat from step 2.

This combo has been estimated to be Exhibition (Bracket 1+).