Anhelo and Poppet Stitcher // Poppet Factory on the battlefield.
You control at least one additional creature with power two or greater.
You have not cast an instant or sorcery this turn.
({3} magic symbol) ({U} magic symbol) ({U} magic symbol) on the first turn, with at most ({6} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) available each other extra turn available.
Steps
Cast Capture of Jingzhou by paying ({3} magic symbol) ({U} magic symbol) ({U} magic symbol) and sacrificing a creaature with power two or greater.
Capture of Jingzhou's casualty ability and Poppet Stitcher trigger.
Resolve the Capture of Jingzhou trigger, copying it.
Resolve the Poppet Stitcher trigger, creating a 2/2 Zombie creature token.
Resolve both Capture of Jingzhous, causing you to take two extra turns after this one.
Move to your last extra turn.
Cast Call to Mind by paying ({2} magic symbol) ({U} magic symbol) and sacrificing a Zombie, targeting Mystic Retrieval.
Call to Mind's casualty ability and Poppet Stitcher trigger.
Resolve the Call to Mind trigger, copying it, targeting Capture of Jingzhou.
Resolve the Poppet Stitcher trigger, creating a 2/2 Zombie creature token.
Resolve both Call to Minds, returning Capture of Jingzhou and Mystic Retrieval from your graveyard to your hand.
Repeat steps 1 through 6 one additional time.
Cast Mystic Retrieval by paying ({3} magic symbol) ({U} magic symbol) and sacrificing a Zombie, targeting Call to Mind.
Mystic Retrieval's casualty ability and Poppet Stitcher trigger.
Resolve the Mystic Retrieval trigger, copying it, targeting Capture of Jingzhou.
Resolve the Poppet Stitcher trigger, creating a 2/2 Zombie creature token.
Resolve both Mystic Retrievals, returning Capture of Jingzhou and Call to Mind from your graveyard to your hand.
Repeat steps 1 through 6 one additional time.
Repeat from step 7.
Results
Infinite turns.
2 Instant/Sorcery with "Return Instant/Sorcery from GY to hand".