Matt and Zakk are both 15, and they help each other with daily life struggles, as the 2 formed a unique bond. Also, Mateus can tap into Lightning Fang's true ability, the wolf beast cloak (basically a yellow version of the nine tails cloak from naruto, but with only 1 tail) and Zakkias can tap into Krysto's true power (think of it like 2nd state sasuke from naruto)