Brokkos, Apex of Forever + Infested Thrinax + Phyrexian Altar

Spicy

Decks

How it works

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Cast Infested Thrinax by paying .
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.
Activate Phyrexian Altar by sacrificing Brokkos, adding .
When Brokkos dies, Infested Thrinax triggers, creating six 1/1 Saproling creature tokens.
Activate Phyrexian Altar four times by sacrificing four Saprolings, adding .
Cast Brokkos from your graveyard for its mutate cost by paying , putting it on top of a Saproling.
Repeat from step 3.

In which brackets is this combo allowed, per Spellbook's Spicy tier?

1–2 · Exhibition & Core

Spellbook classifies this as Spicy — not for these brackets.

3 · Upgraded

Allowed in this bracket.

4–5 · Optimized & cEDH

All combos are allowed.