Dross Scorpion + Elemental Mastery + Woe Strider + Mycosynth Lattice

Dross Scorpion

Elemental Mastery

Woe Strider

Mycosynth Lattice

How it works

1. Activate the creature with Elemental Mastery attached by tapping it, creating a number of 1/1 Elemental creature tokens with haste equal to its power.
2. Activate Woe Strider by sacrificing an Elemental.
3. When the Elemental dies as an artifact due to Mycosynth Lattice, Dross Scorpion triggers, untapping the creature with Elemental Mastery attached.
4. Resolve the Woe Strider ability.
5. Repeat.

This intricate engine relies on Mycosynth Lattice to turn every permanent on the battlefield into an artifact, ensuring that any death triggers the mechanical heart of the loop: Dross Scorpion. When you tap the creature enchanted by Elemental Mastery, it floods the board with hasty Elemental tokens. You then feed those tokens to Woe Strider's sacrifice ability, which simultaneously fuels the scry mechanic and causes Dross Scorpion to untap your Elemental Mastery host, readying it to tap and repeat the cycle endlessly.