I don't tend to mess around with spells. X.

I do. I construct and use them regularly. I'm Wiccan.
See Threads on Magick and Rituals here:
http://www.tarotforum.net/showthread.php?t=246006
(and just to underline - from the possible tone of your comment - spells - don't have to be "evil"

They are afterall - another form of prayer.).
Re: Talisman use example:
- Intention -
"I wish to be confident and have the appropriate inner resources to efficiently tackle my day".
- Talisman chosen for the day that embodies this intention - Trump card #8 (or 11), Strength.
Pop her in your back pocket or bag. Visualise her as YOU - "gentling the lion with a deftly soft touch".
Imagine her being a channel, funnelling this energy into you (or Him - if your chosen Strength card is a Him or other), etc.
Please don't throw it away! All the suggestions are excellent - I was thinking of something called "magician's powder". Supposed to help in the unsticking of cards. Not to sound sentimental but maybe this deck needs you...?
Magicians powder, is a zinc powder that you spread onto cards that stick to each other, to make them easier to shuffle. Some cardstock coating is sticky (rather annoying). It's not for treating water damage.
Although if after water damage your cards have become bumpy and sticky - then it may help with a smoother shuffle.
Once you have water damage - that's it.
Rice, or a humidifier, sunshine, or putting them in the heating cabinet - would help if they are still wet - to dry them out. But any expansion, flaking, ink spread and staining that's happened as a result is unlikely to be curable. (maybe expansion...).