I'll do a write up on my plans for the Wishes later, but if you're curious now, They are going to be played as on the card and intended.

You can grab any card you own outside the game OR in exile. Borrow a card from a friend or buy a card off the shop. Semantics aside, the intention is: if you can sleeve up a card in that moment, put it in your hand.

I'm ready to see what shenanigans come up. It's gonna get silly for sure.

It's also a good way to test cards that probably would never see the light of day in cube.