Most played cards in Brago, King Eternal:

4 Decks
Snow-Covered Island
10 copies - 2.5 average
Snow-Covered Plains
6 copies - 1.5 average
Force Spike
3 copies - 0.75 average
Force of Will
3 copies - 0.75 average
Into the Roil
3 copies - 0.75 average
Memory Lapse
3 copies - 0.75 average
Mana Tithe
3 copies - 0.75 average
Mana Leak
3 copies - 0.75 average
Enlightened Tutor
3 copies - 0.75 average
Daze
3 copies - 0.75 average
Treachery
3 copies - 0.75 average
Wall of Omens
3 copies - 0.75 average
Venser, Shaper Savant
3 copies - 0.75 average
Brainstorm
3 copies - 0.75 average
Council's Judgment
3 copies - 0.75 average
Mental Misstep
3 copies - 0.75 average
Counterspell
3 copies - 0.75 average
Spreading Seas
3 copies - 0.75 average
Parallax Wave
3 copies - 0.75 average
Spell Snare
3 copies - 0.75 average