Quote (Akizk @ Feb 2 2018 10:47pm)
2xCta?
Skill Points that work for Any Class ("oskill" Skill Points)
The Trang-Oul's Avatar Set gives +18 to Fire Ball and +13 to Fire Wall. The boost to Fire Ball (as well as Frostwind's Arctic Blast bonus and a whole lot of other items) are examples of what's internally known as an "oskill". These are skill bonuses that work for any class. If a Necromancer is wearing a Trang-Oul set, he'll get +18 fireball and any +X To All Skills equipment can further increase this. The same applies to all other non-sorceress class wearing a part of that set.
However, oskills work differently for classes that "own" that skill. In this case, it's a Sorceress getting a bonus to Fire Ball. In the other case, it was a Druid getting a bonus to Arctic Blast. If a character gets an oskill bonus to a skill that class "owns," the bonus is restricted to a maximum of +3. If a Barbarian is dual-wielding Call to Arms runeword weapons, then the effective maximum bonus from two CtA is +5 (+3 oskill bonus and +1 to All Skills from each Call to Arms). This is all intentional, in order to balance these items.