I've reached level 17-cannot use skill

[elise royale]

Have you activated the previous skills? When you gain a new skill, but haven't activated the lower one first, the new skill doesn't work. In that case, I think it says you require _______ (name of lower skill).

[Firecracker Sam]

Thanks for your help. Now I get the whole Skill Points thing. Never understood what that was all about until now. Thanks so much!