Wyvern CCG Chameleon Expansion Advertisement

My experience with the Wyvern collectible card game (find at Amazon.com*) is limited to playing the basic game, but the Stratego-like design appeals to me and makes me want to track down a few of the expansion cards. I own many, many basic Wyvern sealed boosters, so as soon as I get the chance to make a trade for the Chameleon cards shown in this 1996 ad, I am taking the trade!