Most played cards in Esper Stoneblade:

2 Decks
Force of Will
8 copies - 4 average
Swords to Plowshares
8 copies - 4 average
Flooded Strand
8 copies - 4 average
Brainstorm
8 copies - 4 average
Stoneforge Mystic
8 copies - 4 average
Polluted Delta
7 copies - 3.5 average
Ponder
7 copies - 3.5 average
Prismatic Ending
7 copies - 3.5 average
Baleful Strix
7 copies - 3.5 average
Tundra
5 copies - 2.5 average
Flusterstorm
4 copies - 2 average
Narset, Parter of Veils
4 copies - 2 average
Teferi, Time Raveler
4 copies - 2 average
Surgical Extraction
4 copies - 2 average
Thoughtseize
4 copies - 2 average
Blue Elemental Blast
3 copies - 1.5 average
Underground Sea
3 copies - 1.5 average
True-Name Nemesis
3 copies - 1.5 average
Prismatic Vista
3 copies - 1.5 average
Snapcaster Mage
3 copies - 1.5 average