Ulalek, Fused Atrocity | Drowner of Truth // Drowned Jungle | Liberator, Urza's Battlethopter

Cards

({4} magic symbol) ({C} magic symbol) ({C} magic symbol) ({C} magic symbol) ({GU} magic symbol) ({GU} magic symbol) plus enough mana to cast the additional Eldrazi spell available.

Cast any other Eldrazi except
Drowner of Truth by paying its mana cost, triggering
Ulalek.
Holding priority, cast
Drowner of Truth by paying ({4} magic symbol) ({C} magic symbol) ({GU} magic symbol) ({GU} magic symbol) .
Drowner of Truth and
Ulalek trigger.
Resolve the
Ulalek trigger, causing you to pay ({C} magic symbol) ({C} magic symbol) to copy all spells you control and then copy all activated and triggered abilities you control, ensuring to put
Drowner of Truth's trigger on top of
Ulalek's trigger.
Resolve the copy of
Drowner of Truth's trigger, creating two 0/1 Eldrazi Spawn creature tokens.
Activate the Eldrazi Spawns by sacrificing them, adding ({C} magic symbol) ({C} magic symbol) .
Resolve the copy of
Ulalek's trigger, causing you to pay ({C} magic symbol) ({C} magic symbol) to copy all spells you control and then copy all activated and triggered abilities you control, ensuring to put
Drowner of Truth's trigger on top of
Ulalek's trigger.
Repeat from step 5.