Most played cards in Intruder Alarm:

3 Decks
Intruder Alarm
12 copies - 4 average
Yavimaya Coast
12 copies - 4 average
Adarkar Wastes
12 copies - 4 average
Enlightened Tutor
12 copies - 4 average
Words of Wilding
12 copies - 4 average
Living Wish
12 copies - 4 average
Birds of Paradise
12 copies - 4 average
Shrieking Drake
12 copies - 4 average
Llanowar Elves
12 copies - 4 average
Counterspell
9 copies - 3 average
Arcanis the Omnipotent
9 copies - 3 average
Flooded Strand
6 copies - 2 average
Words of Wind
6 copies - 2 average
Prodigal Sorcerer
6 copies - 2 average
Windswept Heath
6 copies - 2 average
Swords to Plowshares
3 copies - 1 average
Circle of Protection: Red
3 copies - 1 average
Opposition
3 copies - 1 average
Rootwater Hunter
3 copies - 1 average
Uktabi Orangutan
3 copies - 1 average