Most played cards in Project Melira:

3 Decks
Collected Company
12 copies - 4 average
Birds of Paradise
12 copies - 4 average
Kitchen Finks
11 copies - 3.67 average
Verdant Catacombs
11 copies - 3.67 average
Viscera Seer
9 copies - 3 average
Overgrown Tomb
7 copies - 2.33 average
Noble Hierarch
7 copies - 2.33 average
Windswept Heath
6 copies - 2 average
Melira, Sylvok Outcast
5 copies - 1.67 average
Fulminator Mage
5 copies - 1.67 average
Plague Engineer
4 copies - 1.33 average
Bolas's Citadel
4 copies - 1.33 average
Path to Exile
4 copies - 1.33 average
Sakura-Tribe Elder
4 copies - 1.33 average
Woodland Cemetery
4 copies - 1.33 average
Thoughtseize
4 copies - 1.33 average
Rotting Regisaur
4 copies - 1.33 average
Nurturing Peatland
4 copies - 1.33 average
Scavenging Ooze
4 copies - 1.33 average
Chord of Calling
4 copies - 1.33 average