Most played cards in High Tide:

1 Decks
Merchant Scroll
4 copies - 4 average
High Tide
4 copies - 4 average
Preordain
4 copies - 4 average
Time Spiral
4 copies - 4 average
Turnabout
4 copies - 4 average
Force of Will
4 copies - 4 average
Ponder
4 copies - 4 average
Brainstorm
4 copies - 4 average
Flusterstorm
3 copies - 3 average
Predict
3 copies - 3 average
Cunning Wish
3 copies - 3 average
Polluted Delta
2 copies - 2 average
Shark Typhoon
2 copies - 2 average
Teferi's Realm
2 copies - 2 average
Scalding Tarn
2 copies - 2 average
Pact of Negation
2 copies - 2 average
Grafdigger's Cage
2 copies - 2 average
Hurkyl's Recall
1 copies - 1 average
Snap
1 copies - 1 average
Surgical Extraction
1 copies - 1 average