Most played cards in Madness:

5 Decks
 ↓ Force of Will
20 copies – 4 avg
↓ Tropical Island
20 copies – 4 avg
↓ Squee, Goblin Nabob
20 copies – 4 avg
↓ Basking Rootwalla
20 copies – 4 avg
↓ Wild Mongrel
20 copies – 4 avg
↓ Bazaar of Baghdad
19 copies – 3.8 avg
↓ Circular Logic
16 copies – 3.2 avg
↓ Wooded Foothills
16 copies – 3.2 avg
↓ Roar of the Wurm
14 copies – 2.8 avg
↓ Pyrostatic Pillar
11 copies – 2.2 avg
↓ Naturalize
11 copies – 2.2 avg
↓ Careful Study
11 copies – 2.2 avg
↓ Volcanic Island
10 copies – 2 avg
↓ Red Elemental Blast
9 copies – 1.8 avg
↓ Arrogant Wurm
8 copies – 1.6 avg
↓ Deep Analysis
8 copies – 1.6 avg
↓ Taiga
7 copies – 1.4 avg
↓ Wonder
6 copies – 1.2 avg
↓ Ancestral Recall
5 copies – 1 avg
↓ Blue Elemental Blast
5 copies – 1 avg