Changes

Several major changes are apparent in Diablo III; compared to Diablo II, each character class has many more skills available to use (Diablo II had only a maximum of '''thirty''' skills per character), while in a single skill tree in Diablo III can have in excess of '''eighteen'''. Also notable, is that Diablo III separates a skill tree character's skills into '''Tiers''' - some skills that exist on higher Tiers require the learning of a skill in a lower Tier; likewise, a higher Tier may require a certain number of skill points spent in a lower Tier to access any skills in it. Each Tier also is the same Tier across each skill tree. So far, there appears to be a maximum of exactly '''six''' Tiers for any given skill tree . (Tier I is level 1 to 4, Tier II begins at level 5, Tier III begins at level 10, Tier IV begins at level 15, Tier V begins at level 20, and Tier VI is level 25 and onwards).

So far, it is not known if each skill tree will have the same number of skills for each character class, as it were in Diablo II (each skill tree had exactly ten skills), but from inferring what has been revealed already, a single each skill tree in Diablo III ''may'' have at least '''twenty''' skills. Take for instance, (as of Blizzcon 2008) the [[Wizard]]'s [[Conjuring Skill Tree]] - it has '''ninteen''' skills, distributed over '''four''' Tiers. Since there appears to be (at least for now anyway) a maximum of '''six''' Tiers, the lack of skills in the final two Tiers indicate that there are more yet to come. This is the same for the [[Wizard|Wizard's]] other skill trees, '''nineteen''' in the [[Arcane Skill Tree|Arcane]] & [[Storm Skill Tree]], across at least '''four''' Tiers, with the further two Tiers not yet implemented. Take note however, that as the game progresses in development, the current arrangement of skills may change (some may shift to a higher or lower Tier)ten.