Most played cards in Simic:

2 Decks
Giant Growth
8 copies - 4 average
Serendib Efreet
8 copies - 4 average
Tropical Island
8 copies - 4 average
Berserk
7 copies - 3.5 average
Blue Elemental Blast
7 copies - 3.5 average
Erhnam Djinn
7 copies - 3.5 average
City of Brass
6 copies - 3 average
Psionic Blast
5 copies - 2.5 average
Avoid Fate
5 copies - 2.5 average
Llanowar Elves
5 copies - 2.5 average
Flying Men
4 copies - 2 average
Crumble
4 copies - 2 average
Unsummon
4 copies - 2 average
Energy Flux
4 copies - 2 average
Mishra's Factory
4 copies - 2 average
Control Magic
4 copies - 2 average
Scryb Sprites
4 copies - 2 average
Unstable Mutation
4 copies - 2 average
Birds of Paradise
4 copies - 2 average
Juggernaut
3 copies - 1.5 average