Requires

Brokkos, Apex of Forever must be on the battlefield. Infested Thrinax must be in hand. Phyrexian Altar must be on the battlefield. Mana needed:

Steps

1. Cast Infested Thrinax by paying .
2. When Infested Thrinax enters the battlefield, it triggers, causing you to create a number of 1/1 Saproling creature tokens when a nontoken creature you control dies.
3. Activate Phyrexian Altar by sacrificing Brokkos, adding .
4. When Brokkos dies, Infested Thrinax triggers, creating six 1/1 Saproling creature tokens.
5. Activate Phyrexian Altar four times by sacrificing four Saprolings, adding .
6. Cast Brokkos from your graveyard for its mutate cost by paying , putting it on top of a Saproling.
7. Repeat from step 3.

Results