Most played cards in Oath:

2 Decks
 ↓ Forbidden Orchard
8 copies – 4 avg
↓ Misty Rainforest
8 copies – 4 avg
↓ Oath of Druids
8 copies – 4 avg
↓ Force of Will
8 copies – 4 avg
↓ Spell Pierce
5 copies – 2.5 avg
↓ Tropical Island
4 copies – 2 avg
↓ Underground Sea
4 copies – 2 avg
↓ Nature's Claim
4 copies – 2 avg
↓ Energy Flux
3 copies – 1.5 avg
↓ Emrakul, the Aeons Torn
3 copies – 1.5 avg
↓ Mental Misstep
3 copies – 1.5 avg
↓ Show and Tell
3 copies – 1.5 avg
↓ Flusterstorm
2 copies – 1 avg
↓ Extirpate
2 copies – 1 avg
↓ Volcanic Island
2 copies – 1 avg
↓ Blightsteel Colossus
2 copies – 1 avg
↓ Yawgmoth's Will
2 copies – 1 avg
↓ Spell Snare
2 copies – 1 avg
↓ Thoughtseize
2 copies – 1 avg
↓ Tinker
2 copies – 1 avg