Most played cards in UG Threshold:

1 Decks
Vapor Snag
4 copies - 4 average
Nimble Mongoose
4 copies - 4 average
Thornwood Falls
4 copies - 4 average
Evolving Wilds
4 copies - 4 average
Dispel
4 copies - 4 average
Fog
4 copies - 4 average
Hydroblast
4 copies - 4 average
Daze
4 copies - 4 average
Counterspell
4 copies - 4 average
Ponder
4 copies - 4 average
Delver of Secrets
4 copies - 4 average
Werebear
4 copies - 4 average
Thought Scour
4 copies - 4 average
Brainstorm
4 copies - 4 average
Nature's Claim
3 copies - 3 average
Deep Analysis
2 copies - 2 average
Mental Note
2 copies - 2 average
Hooting Mandrills
1 copies - 1 average
Unsummon
1 copies - 1 average