You won't be dropping Mental Agility in T11. Veiled Shadows on the other hand is next to useless. It's too situational to be worthwhile due to its reliance on fight duration to increase mana regeneration. Should be 3/3 Darkness, not 1/3 and 2/2 Veiled Shadows. Veiled Shadows is 2 wasted talent points on any fight lasting less than 3 minutes, or more than 4 minutes. Veiled Shadows is only a definitive gain when a fight lasts longer than 12 minutes.