High-level class abilities, or High Level Abilities (HLAs), were in first introduced in Baldur's Gate II: Throne of Bhaal. They include passive always-on abilities, such as Use Any Item, Extra X Level Spell, abilities which are added as Innate, such as Hardiness and Assassination, and abilities which are added to the level 9 mage spell book or level 7 priest scroll, such as Dragon's Breath (spell), Comet, and Summon Planetar.
While some high level abilities are required before selecting others, such as Deathblow being required to select Greater Deathblow, other high level abilities block the selection of others. Summon Planetar can block Summon Dark Planetar and vice versa—in addition to this, they can also be restricted by alignment; good characters cannot select Summon Dark Planetar while evil characters cannot select Summon Planetar.
High level abilities become available after a character reaches 3,000,000 experience; the level varies for each class type.
Dual-classed characters only start to get HLAs each level when their current class has more than 3,000,000 points. Multis will get HLAs each level after their total exp points exceeds 3,000,000, but there're limitations in unmodded game that triple multis like F/M/T don't get all HLAs from their three classes.
The minimum for each level is as follows:
|Ranger, Paladin, Mage, Sorcerer, Shaman||3000000||18|