Most played cards in Dump Truck:

3 Decks
Meddling Mage
12 copies - 4 average
Parallax Tide
12 copies - 4 average
Flooded Strand
12 copies - 4 average
Silver Knight
12 copies - 4 average
Stifle
12 copies - 4 average
Parallax Wave
12 copies - 4 average
Brainstorm
12 copies - 4 average
Enlightened Tutor
12 copies - 4 average
Adarkar Wastes
12 copies - 4 average
Gilded Drake
11 copies - 3.67 average
Waterfront Bouncer
11 copies - 3.67 average
Energy Flux
10 copies - 3.33 average
Exalted Angel
9 copies - 3 average
Chill
9 copies - 3 average
Engineered Explosives
6 copies - 2 average
Seal of Cleansing
3 copies - 1 average
Worship
3 copies - 1 average
Meloku the Clouded Mirror
2 copies - 0.67 average
Wrath of God
2 copies - 0.67 average
2 copies - 0.67 average