First of all thanks for the response.
I just play on an INTERLUDE server and i'm tired of the defauult animations,the system folder doesn't have any Lineageeffect.u but i have one from a Gracia.
What i want to do is just change the skills to be like on Gracia (death spike,steal essence,etc).no custom.
If there is no easy way like convert,copy/paste and the only way is through editing scripts can you tell what i have to do for start?