Most played cards in Izzet:

3 Decks
Spirebluff Canal
12 copies - 4 average
Whirler Virtuoso
12 copies - 4 average
Negate
9 copies - 3 average
Magma Spray
8 copies - 2.67 average
Walking Ballista
8 copies - 2.67 average
Aether Hub
8 copies - 2.67 average
Harnessed Lightning
7 copies - 2.33 average
Spire of Industry
6 copies - 2 average
Abrade
6 copies - 2 average
Inventor's Goggles
4 copies - 1.33 average
Maverick Thopterist
4 copies - 1.33 average
Ramunap Ruins
4 copies - 1.33 average
Unclaimed Territory
4 copies - 1.33 average
Animation Module
4 copies - 1.33 average
Decoction Module
4 copies - 1.33 average
Fabrication Module
4 copies - 1.33 average
Whir of Invention
4 copies - 1.33 average
Metallic Rebuke
4 copies - 1.33 average
Glint-Nest Crane
4 copies - 1.33 average
Thriving Turtle
4 copies - 1.33 average