Malcolm, Keen-Eyed Navigator + Penregon Strongbull + Conspiracy

Malcolm, Keen-Eyed Navigator

Penregon Strongbull

Conspiracy

How it works

1. Activate Penregon Strongbull by paying 1 and sacrificing an artifact, dealing 1 damage to each opponent and giving it +1/+1 until end of turn.
2. Malcolm triggers for each opponent dealt damage this way, creating that many Treasure tokens.
3. Activate a Treasure by tapping and sacrificing it, adding 1.
4. Repeat.

This clever loop turns Penregon Strongbull into a lethal engine by rewriting the battlefield's biology with Conspiracy, which designates every creature you control as a Pirate. Because of this type shift, the burn damage dealt by Penregon Strongbull satisfies the trigger condition for Malcolm, Keen-Eyed Navigator, generating a fresh crop of Treasure tokens for your opponents to fund the next iteration. Sacrificing one of those newly minted Treasures to pay for Penregon Strongbull's activation provides the exact mana needed to keep the cycle spinning, resulting in infinite damage and infinitely large creatures.