When you strike the final blow against an enemy, you can gain one or two points of one of their ability scores, if it is higher than yours. Otherwise, you can learn one language, tool, or skill proficiency that they have.
When attempting to steal power, you state the ability or proficiency you wish to steal. If the enemy’s score was lower than yours or they do not have the proficiency you are attempting to steal, the power theft fails and cannot be attempted again.
You cannot use this feat to increase any ability above 20, and you cannot use this feat to gain expertise.
You are unable to use this feature beyond any of the three following maximums:
- Two ability score points and one proficiency.
- One ability score point and three proficiencies.
- Five proficiencies.
You retain the stolen ability scores and proficiencies until you choose to lose them.