Most played cards in Psychatog:

5 Decks
Polluted Delta
20 copies - 4 average
Psychatog
20 copies - 4 average
Mana Leak
20 copies - 4 average
Accumulated Knowledge
20 copies - 4 average
Circular Logic
16 copies - 3.2 average
Hydroblast
16 copies - 3.2 average
Duress
16 copies - 3.2 average
Fact or Fiction
14 copies - 2.8 average
Shadowmage Infiltrator
12 copies - 2.4 average
Underground River
12 copies - 2.4 average
Fire // Ice
10 copies - 2 average
Intuition
10 copies - 2 average
Bloodstained Mire
9 copies - 1.8 average
Pyroclasm
8 copies - 1.6 average
Perish
8 copies - 1.6 average
Opt
8 copies - 1.6 average
Ghastly Demise
8 copies - 1.6 average
Counterspell
8 copies - 1.6 average
Pyroblast
7 copies - 1.4 average
Gush
6 copies - 1.2 average