Most played cards in Drain Tendrils:

2 Decks
 ↓ Accumulated Knowledge
8 copies – 4 avg
↓ Brainstorm
8 copies – 4 avg
↓ Burning Wish
8 copies – 4 avg
↓ Duress
8 copies – 4 avg
↓ Force of Will
8 copies – 4 avg
↓ Mana Drain
8 copies – 4 avg
↓ Flooded Strand
6 copies – 3 avg
↓ Intuition
6 copies – 3 avg
↓ Polluted Delta
6 copies – 3 avg
↓ Underground Sea
5 copies – 2.5 avg
↓ Volcanic Island
4 copies – 2 avg
↓ Rack and Ruin
4 copies – 2 avg
↓ Ancestral Recall
2 copies – 1 avg
↓ Black Lotus
2 copies – 1 avg
↓ Chain of Vapor
2 copies – 1 avg
↓ Demonic Tutor
2 copies – 1 avg
↓ Fact or Fiction
2 copies – 1 avg
↓ Fire // Ice
2 copies – 1 avg
↓ Library of Alexandria
2 copies – 1 avg
↓ Lotus Petal
2 copies – 1 avg