Most played cards in Angel Oath:

3 Decks
Force of Will
12 copies - 4 average
Forbidden Orchard
12 copies - 4 average
Oath of Druids
12 copies - 4 average
Brainstorm
12 copies - 4 average
Energy Flux
11 copies - 3.67 average
Mana Leak
10 copies - 3.33 average
Mana Drain
8 copies - 2.67 average
Polluted Delta
8 copies - 2.67 average
Impulse
8 copies - 2.67 average
Tropical Island
6 copies - 2 average
Stifle
6 copies - 2 average
Wasteland
6 copies - 2 average
Counterspell
6 copies - 2 average
5 copies - 1.67 average
Accumulated Knowledge
4 copies - 1.33 average
Back to Basics
4 copies - 1.33 average
Swords to Plowshares
4 copies - 1.33 average
Arcane Laboratory
4 copies - 1.33 average
Flooded Strand
4 copies - 1.33 average
Engineered Explosives
4 copies - 1.33 average