Malcolm, Keen-Eyed Navigator + Magmaw + Amoeboid Changeling + Anointed Procession

Malcolm, Keen-Eyed Navigator

Magmaw

Amoeboid Changeling

Anointed Procession

How it works

1. Activate Amoeboid Changeling by tapping it, causing Magmaw to gain all creature types until end of turn.
2. Activate Magmaw by paying 1 and sacrificing another nonland permanent, dealing 1 damage to an opponent.
3. Malcolm triggers, creating two Treasure tokens.
4. Activate a Treasure by tapping and sacrificing it, adding 1.
5. Repeat from step 2.

This clever loop turns Magmaw into an honorary Pirate by leveraging Amoeboid Changeling's ability to grant all creature types, allowing it to trigger Malcolm, Keen-Eyed Navigator whenever it deals damage. Because Anointed Procession doubles every Treasure created by Malcolm's trigger, you generate a surplus of mana and tokens with each iteration to fuel Magmaw's sacrificial activation. You can simply repeat this process to deal infinite damage to your opponents, turning a humble changeling and a devourer of permanents into a lethal, swashbuckling machine.