Just played a game with this, along with Advisor in the kingdom.
Advisor says that the player ends up with 2 cards (ie, 3-minus-1). But when I "Chameleon" it, I get zero extra coins, rather than the expected 2 coins. (And, having played Advisor as the Chameleon, I of course ended up not getting the expected 2 cards one usually gets with Advisor.)
What am I missing? Is this a known bug? Or, simply a misreading/misunderstanding by me???
Advisor does not draw cards. It reveals 3, then discards one of your opponent's choice, and the other two are put into your hand.
As you are putting cards into your hand, rather than putting them back onto your deck then +2 Cards, this is not card draw, and so is not chameleonable.
Note that Way of the Chameleon specifically calls out + Cards, but there is no + Cards written anywhere on Advisor.
Playing Advisor as Way of the Chameleon should not be any functionally different to playing it without.