Sprouting Thrinax | Nim Deathmantle | Thermopod

Cards

Activate
Thermopod's second ability by sacrificing
Sprouting Thrinax, adding ({R} magic symbol) .
When
Sprouting Thrinax dies, it and
Nim Deathmantle trigger.
Resolve the
Sprouting Thrinax trigger, creating three 1/1 Saproling creature tokens.
Activate
Thermopod's second ability three times by sacrificing the Saprolings, adding ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) .
Resolve the
Nim Deathmantle trigger from step 2, causing you to pay ({4} magic symbol) to return
Sprouting Thrinax from your graveyard to the battlefield, and attach
Nim Deathmantle to it.
Repeat.