Exxor powers were the abilities that a few Exxorians possess. Zan and Jayna, better known as the Wonder Twins on their adopted planet of Earth, are among the few Exxorians to have such abilities.
In the case of the Twins, as long as they made physical contact, they could activate their abilities: Jayna could shapeshift into any animal, while Zan could transform into any form of water. Exxor powers were exclusive to a very small percentage of the population of Exxor.