I have been tweaking an artifact deck for a while now. Tried a mid-range version and a control variant but non of those seem to work. Turns out the best way to play with artifact finisher is to go all out face.
Decklist:

Gameplan:
Basically, the goal of the deck is to chip the opponent’s HP while trying to pick up the combo pieces for a finisher. The most out of hand damage you can do at 9 mana is 2x Tear + 2x Staff + Time Maelstrom for 28 damage. The max damage output for a single turn however is variable as you can get better discounted artifacts from Grincher allowing you to play a tear to boost your damage further. There are also situations where you can setup lethal by equipping artifacts a turn before the combo tear + time mael.
Mini Combos exists too. At 5 mana you can go for Falcius + Warlock dealing 7 face damage without taking any in return while setting up the board too.
Gameplay Vids:
Gameplay #1
Gameplay #2
Gameplay #3
Gameplay #4