Going forward, this is my advice: PVE and PVP should only be separated by gameplay, and not card base. All cards should be usable in all areas.
PVE should be a place where players can play campaign or other modes to earn cards that can also be used in PVP. Similarly, PVP should be a place to compete with other players to earn cards that can also be used in PVE. PVE and PVP should supplement each other, and not be divided by a wall.
PVE should be a place where players can play campaign or other modes to earn cards that can also be used in PVP. Similarly, PVP should be a place to compete with other players to earn cards that can also be used in PVE. PVE and PVP should supplement each other, and not be divided by a wall.