Most played cards in Ad Nauseam Tendrils:

2373 Decks
Dark Ritual
9472 copies – 3.99 avg
Brainstorm
9465 copies – 3.99 avg
Lion's Eye Diamond
9446 copies – 3.98 avg
Lotus Petal
9428 copies – 3.97 avg
Infernal Tutor
9355 copies – 3.94 avg
Polluted Delta
9173 copies – 3.87 avg
Ponder
9127 copies – 3.85 avg
Cabal Ritual
9023 copies – 3.8 avg
Duress
7594 copies – 3.2 avg
Gitaxian Probe
6364 copies – 2.68 avg
Cabal Therapy
5499 copies – 2.32 avg
Preordain
5190 copies – 2.19 avg
Underground Sea
4781 copies – 2.01 avg
Abrupt Decay
4518 copies – 1.9 avg
Misty Rainforest
4165 copies – 1.76 avg
Chain of Vapor
3445 copies – 1.45 avg
Tendrils of Agony
3278 copies – 1.38 avg
Past in Flames
2948 copies – 1.24 avg
Thoughtseize
2942 copies – 1.24 avg
Ad Nauseam
2561 copies – 1.08 avg