Most played cards in Ninjas:

1 Decks
 ↓ Force of Will
4 copies – 4 avg
↓ Ponder
4 copies – 4 avg
↓ Fatal Push
4 copies – 4 avg
↓ Retrofitter Foundry
4 copies – 4 avg
↓ Brainstorm
4 copies – 4 avg
↓ Ornithopter
4 copies – 4 avg
↓ Ingenious Infiltrator
4 copies – 4 avg
↓ Prismatic Vista
4 copies – 4 avg
↓ Polluted Delta
4 copies – 4 avg
↓ Changeling Outcast
3 copies – 3 avg
↓ Yuriko, the Tiger's Shadow
3 copies – 3 avg
↓ Underground Sea
3 copies – 3 avg
↓ Plague Engineer
2 copies – 2 avg
↓ Back to Basics
2 copies – 2 avg
↓ Surgical Extraction
2 copies – 2 avg
↓ Thoughtseize
2 copies – 2 avg
↓ Force of Negation
2 copies – 2 avg
↓ Drown in the Loch
2 copies – 2 avg
↓ Daze
2 copies – 2 avg
↓ Brazen Borrower
2 copies – 2 avg