Ulalek, Fused Atrocity | Annie Joins Up | Spawn-Gang Commander

Cards

Spawn-Gang Commander in hand.
Ulalek and
Annie Joins Up on the battlefield.
({3} magic symbol) ({C} magic symbol) ({C} magic symbol) ({R} magic symbol) ({R} magic symbol) available.

Cast
Spawn-Gang Commander by paying ({3} magic symbol) ({R} magic symbol) ({R} magic symbol) .
Ulalek triggers twice, and
Spawn-Gang Commander triggers once.
Resolve one of
Ulalek's triggers, causing you to pay ({C} magic symbol) ({C} magic symbol) to copy the
Spawn-Gang Commander spell,
Ulalek's trigger and
Spawn-Gang Commander's trigger.
Resolve the copy of
Spawn-Gang Commander's trigger, creating three 0/1 Eldrazi Spawn creature tokens.
Holding priority, activate two Eldrazi Spawns by sacrificing them, adding ({C} magic symbol) ({C} magic symbol) .
Resolve the
Ulalek trigger from step 3, causing you to pay ({C} magic symbol) ({C} magic symbol) to copy the
Spawn-Gang Commander spell,
Ulalek's trigger and
Spawn-Gang Commander's trigger.
Repeat from step 4.

Once you have infinite ({C} magic symbol) and Eldrazi Spawn tokens, you may sacrifice them to
Spawn-Gang Commander to deal infinite damage to any target(s).