Malcolm, Keen-Eyed Navigator + Magmaw + Amoeboid Changeling + Parallel Lives

Malcolm, Keen-Eyed Navigator

Magmaw

Amoeboid Changeling

Parallel Lives

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 fascinating loop turns Magmaw into an honorary Pirate with the help of Amoeboid Changeling, granting it all creature types so that its own activated ability can trigger Malcolm, Keen-Eyed Navigator. Every time Magmaw sacrifices a nonland permanent to ping an opponent, Malcolm's trigger sees a Pirate dealing damage and floods your board with Treasure tokens, a bounty immediately doubled by Parallel Lives. You can then crack those Treasures for mana to feed Magmaw's sacrifice cost and repeat the process, turning every nonland permanent you control into an endless stream of damage.