Most played cards in Dimir Control:

4 Decks
Negate
14 copies - 3.5 average
Shark Typhoon
12 copies - 3 average
Extinction Event
11 copies - 2.75 average
Bloodchief's Thirst
11 copies - 2.75 average
Ugin, the Spirit Dragon
10 copies - 2.5 average
Heartless Act
10 copies - 2.5 average
Elspeth's Nightmare
9 copies - 2.25 average
Mystical Dispute
9 copies - 2.25 average
Solemn Simulacrum
8 copies - 2 average
Temple of Deceit
8 copies - 2 average
Cling to Dust
8 copies - 2 average
Clearwater Pathway
8 copies - 2 average
Jwari Disruption
7 copies - 1.75 average
Omen of the Sea
7 copies - 1.75 average
Snow-Covered Island
6 copies - 1.5 average
Eliminate
5 copies - 1.25 average
Shadows' Verdict
5 copies - 1.25 average
Snow-Covered Swamp
5 copies - 1.25 average
Mazemind Tome
5 copies - 1.25 average
Lochmere Serpent
5 copies - 1.25 average