Grabber

[mild fulcrum]

After a card has been selected, it cannot be unselected. 3x small blind

[vocal dagger]

Not that bad unless you misclick, but then you can discard soooo

[keen umbra]

grabber is the name of a voucher

[unborn cargo]

you could probably rename it to something like "the gate"

but shorten the desc to "cards cannot be deselected"

[proud fulcrum]

this feels more modded