Mindstalker | Pillars of Eternity 2 Wiki

Ascendant

 Bonus: Max focus is increased by 5. Reaching Max focus grants "Ascended" effect temporarily, increasing power level and reducing power focus cost to 0. Soul Whip does not turn off while Ascended and provides more bonus damage during Ascended.

 Penalty: While not Ascended, receive a penalty to Cipher's Power Level (-1). While not Ascended Soul Whip does much less damage, but generate more Focus. When Ascended fades, reduce focus to 0.

Beguiler

 Bonus: All Deception cipher spells have +20% range. +6 Focus on scoring Hits with Deception against Flanked, Body Affiliation, Mind Affiliation targets.

 Penalty: Soul Whip provides less bonus damage and reduced Focus against targets that are not vulnerable to Sneak Attack.

Soul Blade

 Bonus: Gains "Soul Annihilation" ability: a soul-enhanced melee strike that consumes the cipher's remaining power pool to converts it into Raw damage on the target. Shred Cipher spells cost less focus (-5). 
Downing an enemy with a Melee Weapon temporarily grants Concentration (Prevents Interrupts) and raises Max Focus by +10 for 30.0 seconds.

 Penalty: Max Focus is reduced by -5. (Combat starting amount as well begins at 2/25 vs 7/30 for Cipher)

Assassin

 Bonus: Gain Assassinate passive. From Stealth, attacks receive +4 Penetration, +25 Accuracy and +50% Critical Hit Damage.

 Penalty: All Damage received is increased by 15%

Streetfighter

 Bonus: -50% Recovery Time +20% damage when the street fighter is Flanked or Bloodied. +100% Weapon Crit damage when the street fighter is both Flanked and Bloodied.

 Penalty: +20 Recovery Time when the street fighter is neither Flanked nor Bloodied.

Trickster

 Bonus: Learns Arkemyr's Dazzling Lights. Gains access to select illusion wizard spells at power levels 3,5,7 9.

 Penalty: Sneak Attack deals 10% less damage