Damaged deck…what do I do?

So I bought this deck in 2015. At the time I was a novice (still am) and I was just getting into Tarot. I had several other decks as well, but this one became my favorite and I’ve used it pretty much exclusively. I just went to grab it out of a bag in my truck and after unwrapping the cloth I found all the cards stuck together. I’m guessing it’s from the heat of summer and then winter etc. I pulled them apart one at a time but it’s not good. Some are fine. Others have the names completely ripped off. It’s basically not shuffle-able now. I want to buy the same deck and try to maybe transfer the energy by bundling them together and sleeping with them under my pillow for a while. But then I’m not sure what to do with the damaged deck. Any suggestions or advice?