Grand Illusion: Twin Mind I

Note: This mastery unlock is not yet functional. Unlocks a new ability: Grand Illusion: Twin Mind. You create a near-perfect copy of your ally's mind that exists alongside your own. For the next 10 seconds, your ability bar is replaced with a copy of theirs, allowing you to use their abilities at 60% effectiveness. Only abilities with a base cast time of 6 seconds or less, and/or a cooldown of less than 60 seconds may be used in this way.