Malcolm and Penregon Strongbull on the battlefield.
You control at least one artifact.
You have at least three opponents.
({1} magic symbol) ({U} magic symbol) available.
Steps
Cast Artificial Evolution by paying ({U} magic symbol) , changing all instances of "Pirate" on Malcolm to "Minotaur" until end of turn.
Activate Penregon Strongbull by paying ({1} magic symbol) and sacrificing an artifact, dealing 1 damage to each opponent and giving it +1/+1 until end of turn.
Malcolm triggers for each opponent dealt damage this way, creating that many Treasure tokens.
Activate a Treasure by tapping and sacrificing it, adding ({1} magic symbol) .
Repeat from step 2.
Results
Infinite colored mana.
Infinite damage.
Infinitely large Penregon Strongbull until end of turn.