Aspect of the Fox, Aspect of the Wyrm, and other transform effects like them should specify the minion is not considered a "new" minion. This is coming from other card games which have very similar effects and specify through in-game vfx and card text whether or not it is considered a "new" minion, or an existing minion with changed properties. A potential fix I thought of is change Transform to a keyword that explains it a little more in-depth for people who have been trained to expect something else by other inferior card games. Otherwise, some reminder text on the card or at least a pop-up bubble like a keyword would be extremely helpful to players new and returning.