Most played cards in Talrand, Sky Summoner:

4 Decks
Snow-Covered Island
28 copies - 7 average
Mana Leak
4 copies - 1 average
Miscalculation
4 copies - 1 average
Spell Pierce
4 copies - 1 average
Spell Snare
4 copies - 1 average
Daze
4 copies - 1 average
Remove Soul
4 copies - 1 average
Ancestral Vision
4 copies - 1 average
Fact or Fiction
4 copies - 1 average
Essence Scatter
4 copies - 1 average
Mental Misstep
4 copies - 1 average
Memory Lapse
4 copies - 1 average
Complicate
4 copies - 1 average
Muddle the Mixture
4 copies - 1 average
Counterspell
4 copies - 1 average
Disrupting Shoal
4 copies - 1 average
Cryptic Command
4 copies - 1 average
Opt
4 copies - 1 average
Remand
4 copies - 1 average
Force of Will
4 copies - 1 average