Most played cards in Tibalt Cascade:

1 Decks
Force of Negation
4 copies - 4 average
Shardless Agent
4 copies - 4 average
Force of Will
4 copies - 4 average
Misdirection
4 copies - 4 average
Leyline of the Void
4 copies - 4 average
Violent Outburst
4 copies - 4 average
Elvish Spirit Guide
4 copies - 4 average
Simian Spirit Guide
4 copies - 4 average
Scalding Tarn
4 copies - 4 average
Misty Rainforest
4 copies - 4 average
Valki, God of Lies
3 copies - 3 average
Oko, Thief of Crowns
3 copies - 3 average
Uro, Titan of Nature's Wrath
3 copies - 3 average
Dismember
3 copies - 3 average
Mystical Dispute
3 copies - 3 average
Lavinia, Azorius Renegade
3 copies - 3 average
Plague Engineer
2 copies - 2 average
Snow-Covered Island
2 copies - 2 average
Tropical Island
2 copies - 2 average
Brazen Borrower
2 copies - 2 average