Keen Intellect

Gains different buffs based on the number of different Spell Skills equipped: For every Spell Skill equipped, +5% additional Spell Damage
For every Empower Skill equipped, +12% additional Hit Damage (multiplies) for skills cast by Spell Burst
For every Curse Skill equipped, +5% Elemental and Erosion Resistance Penetration and +5% Armor DMG Mitigation Penetration
For every Defensive Skill equipped, +15% additional Max Mana (multiplies)
For every Mobility Skill equipped, +12% additional Cast Speed (multiplies)