Brokkos, Apex of Forever + Infested Thrinax + Pitiless Plunderer + 1 more

Cast Infested Thrinax by paying .

When Infested Thrinax enters the battlefield, it and Blasting Station trigger.

Resolve the Infested Thrinax trigger, causing you to create a number of 1/1 Saproling creature tokens when a nontoken creature you control dies.

Resolve the Blasting Station trigger, untapping it.

Activate Blasting Station by tapping it and sacrificing Brokkos.

When Brokkos dies, Infested Thrinax and Pitiless Plunderer trigger.

Resolve the Pitiless Plunderer trigger, creating a Treasure token.

Resolve the Infested Thrinax trigger, creating six 1/1 Saproling creature tokens.

When the Saprolings enter the battlefield, Blasting Station triggers that many times.

Resolve a Blasting Station trigger, untapping it.

Activate Blasting Station by tapping it and sacrificing a Saproling.

When the Saproling dies, Pitiless Plunderer triggers, creating a Treasure token.

Resolve the Blasting Station ability from step 11, dealing 1 damage to any target.

Repeat from step 10 three additional times.

Resolve all remaining Blasting Station triggers, untapping it.

Resolve the Blasting Station ability from step 5, dealing 1 damage to any target.

Activate five Treasures by tapping and sacrificing them, adding .

Cast Brokkos from your graveyard for its mutate cost by paying , putting it on top of a Saproling.

Repeat from step 5.