From Portals of Phereon Wiki

A skill that can't be used while engaged in combat. A fixed skill on Lavataurs.

It may seem redundant, but it's actually quite useful in traversing unfavorable terrain and initiating. As such, it's not a bad idea to breed Charge onto other units after you get the SkillMastery Essence.

For Creation it's the very first node on the Centaur skill tree, giving you easy access to the skill. Druid can also learn it early on under their Strength skill tree.