The custom engraved card clips are more for cosmetic appeal, than actually being useful.
There is also another card guard out there(some sites label it as "Card Guard Superior") which I owned before, but after a while the metal warped and could not even grip the deck, which resulted in my cards prematurely falling out.
At the moment I own 3 Porper card clips(may get another soon), and they are fantastic. the first one i got back in 2005, still holds the deck as firm as when I got it.
Be thankful they don't go for like 70 bucks lol . Pick one up