Most played cards in Artifact Aggro:

5 Decks
Su-Chi
18 copies - 3.6 average
Mishra's Factory
18 copies - 3.6 average
Lightning Bolt
16 copies - 3.2 average
Juggernaut
15 copies - 3 average
Red Elemental Blast
15 copies - 3 average
Relic Barrier
12 copies - 2.4 average
Howling Mine
12 copies - 2.4 average
City in a Bottle
12 copies - 2.4 average
Blood Moon
11 copies - 2.2 average
Shatter
11 copies - 2.2 average
Strip Mine
11 copies - 2.2 average
Triskelion
11 copies - 2.2 average
Mishra's Workshop
10 copies - 2 average
Mana Vault
9 copies - 1.8 average
Atog
9 copies - 1.8 average
Black Vise
8 copies - 1.6 average
Tetravus
8 copies - 1.6 average
Chain Lightning
7 copies - 1.4 average
Copy Artifact
6 copies - 1.2 average
Fireball
6 copies - 1.2 average