Mayael's Aria and Junk Jet on the battlefield (Junk Jet attached to a creature with power 1 or greater).
You have enough mana and control enough other artifacts such that you can activate Junk Jet enough times to cause the creature it is attached to's power to become equal to or greater than 19.
Steps
At the beginning of your upkeep, Mayael's Aria triggers.
Holding priority, activate Junk Jet by paying ({3} magic symbol) and sacrificing another artifact, doubling the creature it is attached to's power until end of turn.
Repeat step 2 until the creature with Junk Jet attached has power 19 or greater.
Resolve the Mayael's Aria trigger, causing you to put a +1/+1 counter on each creature you control, gain 10 life, and win the game.