Critical Chance

Hey,

as Mage, does normal critical strike chance stacks for my spells too?
Or have to skill "critical strike chance for spells" ???

Depends where this mod is. For instance, if you equip a weapon that has "X increased critical strike chance" that applies only to the weapon, and attacks performed with it, not spells. If the affix is "Global increased critical strike chance" that will apply to your spells. If you are talking about nodes on the passive tree, unless it specifies Critical Strike Chance with Daggers/Swords/Etc., then they will apply to your spells.