Tezzeret, Vortex of Infinity

At the beginning of each opponent's end step, the opponent creates a 0/0 colorless Construct artifact creature token with “This creature gets +1/+1 for each artifact you control.” if it didn't deal damage to Tezzeret, Vortex of Infinity's controller this turn.

{p/u}{p/b}{t}: Add {c} mana for each artifact target opponent controls.

"Once I had full control of my life. I now behold a machine decides my fate"
- Tezzeret