I think you are down playing how good the card is and how good Vet actually is at the moment.I think Vet is solid faction right now this card puts them in the good maybe even really good category.
Sandswirl reader(what one card can do)
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Bounce your own minions so you can play extra mech, Falicus ,dream shaper or Sirocco getting value from your own minion while still establishing a board
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You can bounce damaged or silence minion ,Making them a threat again like Amara or Unseven
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You can bounce an enemy minion and waste a turn for them,Let say the person plays Storm Kage you bounce it 7 mana and 7 mana is a whole turn of them not doing something probably .Vet is going to abuse any deck archetype that plays big stuff that doesn’t have immediate impact the first to come mind is Lyonar
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Soft counter Mechazor
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If the person has 6 cards in their hand,When minion is bounced it is hard removed.
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Because it is form of removal,Vet can build their decks a little differently so you can maybe two blood of air instead of three with 3 Sandswirl reader.Which free you up to carry something else maybe a dominate will,maybe a Nosh Rak ,Maybe a circle of Dicesscation
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It win small condition in a late game scenario when both side are top decking, get the tile down and it working as a minion generation.Heck you could infinitely bounce two readers and swarm someone down.
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Helps to creates dervish which increase synergy chances. Sajj can more easily play a dervish deck without playing Obelysk,She can play Arid Unmaking, Pax, Allomancer, Nimbus, and Sandswirl Reader .
The point is card strong but also has so much versatility ,Thumping wave got nerf because it was versatile and it lifted Magmar up a lot this card has potential to do the same for Vet.



