Ulalek, Fused Atrocity | Annie Joins Up | Writhing Chrysalis

Cards

Writhing Chrysalis in hand.
Ulalek and
Annie Joins Up on the battlefield.
({2} magic symbol) ({C} magic symbol) ({C} magic symbol) ({R} magic symbol) ({G} magic symbol) available.

Cast
Writhing Chrysalis by paying ({2} magic symbol) ({R} magic symbol) ({G} magic symbol) .
Ulalek triggers twice, and
Writhing Chrysalis' first ability triggers once.
Resolve one of
Ulalek's triggers, causing you to pay ({C} magic symbol) ({C} magic symbol) to copy the
Writhing Chrysalis spell,
Ulalek's trigger and
Writhing Chrysalis' trigger.
Resolve the copy of
Writhing Chrysalis' trigger, creating two 0/1 Eldrazi Spawn creature tokens.
Activate both Eldrazi Spawn creature tokens by sacrificing it, adding ({C} magic symbol) ({C} magic symbol) .
Resolve the copy of
Ulalek's trigger from step 3, causing you to pay ({C} magic symbol) ({C} magic symbol) to copy the
Writhing Chrysalis spell,
Ulalek's trigger and
Writhing Chrysalis' trigger.
Repeat from step 4.

This combo will result in infinite copies of the
Writhing Chrysalis spell, resulting in infinite creature tokens. You may also forego the resolution of
Writhing Chrysalis' trigger on the first iteration, requiring an additional ({C} magic symbol) ({C} magic symbol) , but giving you additional triggers to then get infinite Eldrazi Spawns.