The only issue with chaos morphing a hero is that it will temporarily disable any auras that they have.. (For like 1 second really). Otherwise, everything stays the same, including their Proper Name, level, ability levels, etc.
I made a map for you to look at if you're not sure how to do it, it's just a Priestess of the Moon and a scout tower with infinite HP regen for you to shoot at, just click the "Light Arrows" ability to switch back and forth between the different attacks. |