Most played cards in Drake Combo:

4 Decks
Mulldrifter
16 copies - 4 average
Peregrine Drake
16 copies - 4 average
Sea Gate Oracle
14 copies - 3.5 average
Ghostly Flicker
12 copies - 3 average
Preordain
12 copies - 3 average
Counterspell
12 copies - 3 average
Compulsive Research
11 copies - 2.75 average
Hydroblast
11 copies - 2.75 average
Archaeomancer
11 copies - 2.75 average
Swiftwater Cliffs
8 copies - 2 average
Izzet Boilerworks
7 copies - 1.75 average
Lightning Bolt
7 copies - 1.75 average
Dispel
7 copies - 1.75 average
Flame Slash
6 copies - 1.5 average
Pyroblast
6 copies - 1.5 average
Electrickery
5 copies - 1.25 average
Gigadrowse
4 copies - 1 average
Firebolt
4 copies - 1 average
Halimar Depths
4 copies - 1 average
Snap
4 copies - 1 average