Cards unable to be sold to NPC

[Minus The Bear]

The list of cards that cannot be sold to NPCs will be updated if I find more.

Chimera
Hydro
Mysteltainn
Executioner
Gryphon

 

[Collaboration]

They're mini boss cards which we applied "no sell" restriction.

 

[Minus The Bear]

Ahh didn't even put together that they were mini-boss cards. I am cleaning storage and just noticed I couldn't sell them. Thanks!