Most played cards in Intruder Alarm:

1 Decks
Counterspell
4 copies - 4 average
Power Sink
4 copies - 4 average
Crop Rotation
4 copies - 4 average
Yavimaya Coast
4 copies - 4 average
Accumulated Knowledge
4 copies - 4 average
Brainstorm
4 copies - 4 average
Animate Land
4 copies - 4 average
Birds of Paradise
4 copies - 4 average
Intruder Alarm
3 copies - 3 average
Flash of Insight
3 copies - 3 average
Forbidden Orchard
3 copies - 3 average
Energy Flux
3 copies - 3 average
Cunning Wish
3 copies - 3 average
Chill
2 copies - 2 average
Arcane Laboratory
2 copies - 2 average
City of Traitors
2 copies - 2 average
Naturalize
1 copies - 1 average
Rebuild
1 copies - 1 average
Oxidize
1 copies - 1 average
Stifle
1 copies - 1 average