Mutating Infection (Apex Build #2) (EDH / Commander)

THE DECK:

This is the second installation of my Apex Builds series: A Brokkos, Apex of Forever deck focused on the... controversial mechanic, Infect.
The plan: Throw down a creature with Infect and suit it up with all kinds of mutations. Then, proceed to one-shot players with poison counters.
Brokkos is phenomenal in this deck because he can turn a 1/1 with Infect into a 6/6 with Infect and Trample. This is amazing for us, because all we have to do is hit a player twice - or hit them once and pump Brokkos to a 10/10 or higher.
When your opponents kill your Infect army (which is inevitable), never to worry! Just play a fresh Phyrexian and throw Brokkos back on it from your graveyard.
With Brokkos, your opponents' dooms are inevitable.

WHAT ARE “APEX BUILDS?”

As a tribute to my favourite set, I am making a series of 5 commander decks helmed by each of the five Ikoria Apex monsters, evenly matched to be pitted against each other for tons of Ikoria-flavored fun! Each Apex Build must:

• Have an Ikoria Apex at the helm (Brokkos, Apex of Forever)
• Contain its colour-matching Ultimatum (Emergent Ultimatum)
• Contain the Apex’s Mythos spell (Mythos of Brokkos)
• Contain the Apex’s signature instant / sorcery (Charge of the Forever-Beast)
• Contain at least 20% nonland cards from Ikoria: Lair of Behemoths / IKO Commander
• Cost less than or equal to $60 AUD (approx. $44 USD)