Most played cards in Artifact Red Aggro:

4 Decks
Memnite
16 copies - 4 average
Goblin Chieftain
16 copies - 4 average
Lightning Bolt
16 copies - 4 average
Goblin Bushwhacker
16 copies - 4 average
Goblin Guide
16 copies - 4 average
Kuldotha Rebirth
15 copies - 3.75 average
Panic Spellbomb
14 copies - 3.5 average
Arid Mesa
12 copies - 3 average
Mark of Mutiny
12 copies - 3 average
Scalding Tarn
12 copies - 3 average
Spikeshot Elder
10 copies - 2.5 average
Arc Trail
10 copies - 2.5 average
Perilous Myr
9 copies - 2.25 average
Teetering Peaks
8 copies - 2 average
Chimeric Mass
8 copies - 2 average
Molten-Tail Masticore
6 copies - 1.5 average
Shatter
6 copies - 1.5 average
Galvanic Blast
6 copies - 1.5 average
Burst Lightning
6 copies - 1.5 average
Sylvok Lifestaff
5 copies - 1.25 average