Most played cards in Initiative W:

3 Decks
Chalice of the Void
12 copies – 4 avg
Swords to Plowshares
12 copies – 4 avg
City of Traitors
12 copies – 4 avg
Thalia, Guardian of Thraben
12 copies – 4 avg
White Plume Adventurer
12 copies – 4 avg
Emeria's Call
12 copies – 4 avg
Ancient Tomb
12 copies – 4 avg
Chrome Mox
12 copies – 4 avg
Touch the Spirit Realm
11 copies – 3.67 avg
Cavern of Souls
11 copies – 3.67 avg
Elite Spellbinder
10 copies – 3.33 avg
Lotus Petal
8 copies – 2.67 avg
Leyline of the Void
8 copies – 2.67 avg
Solitude
8 copies – 2.67 avg
Seasoned Dungeoneer
8 copies – 2.67 avg
Archon of Absolution
6 copies – 2 avg
Containment Priest
6 copies – 2 avg
Eiganjo, Seat of the Empire
6 copies – 2 avg
Palace Jailer
4 copies – 1.33 avg
Walking Ballista
4 copies – 1.33 avg