Replace your hand with cards from your deck of the same rarity
Lets see... (Now you've explained it, this may be more my mistake then a bad text.)
Each card on hand is replaced by a card of the same rarity
This puts a little more emphasis on the individuality of the cards. (Though it might still allow my misread...)
+ it's negligibly shorter ;-)
The same emphasis could be achieved by altering the order of words in your text:
Replace your hand with cards of the same rarity from your deck
If you want it waterproof you could add of the replaced card to either text.