how to prevent yugioh cards from warping Card / curling - humidity or something else? How do I fix this?

The full art version of the same card from Pokemon Evolving Skies can set you back a hundred dollars, but this version from the Dragonite V Sword and Shield box is still pretty, functionally identical, and ultra cheap

Item rule: You may play any number of Item cards during your turn

www.pixiv.net/stacc/mayoku (Source of original art for many deviant artists) 20

Its also one of the handful of venture/payoff hybrid cards, basically providing fuel towards its own value

Desert Twister is the functional comparison of this card and that bad boy is an unplayable six mana which doesn't seem an unreasonable price for the effect