Most played cards in Mono Blue Control:

1 Decks
Snow-Covered Island
16 copies - 16 average
Spell Snare
4 copies - 4 average
Teferi, Mage of Zhalfir
4 copies - 4 average
Bottle Gnomes
4 copies - 4 average
Flashfreeze
4 copies - 4 average
Riftwing Cloudskate
4 copies - 4 average
Rune Snag
4 copies - 4 average
Repeal
4 copies - 4 average
Cancel
4 copies - 4 average
Ancestral Vision
4 copies - 4 average
Desert
4 copies - 4 average
Faerie Conclave
4 copies - 4 average
Razormane Masticore
4 copies - 4 average
Persuasion
3 copies - 3 average
Venser, Shaper Savant
3 copies - 3 average
Aeon Chronicler
3 copies - 3 average
Urza's Factory
2 copies - 2 average
copies - 0 average