Vision Quest is not granting the correct amount of mana regen. The tooltip states "...your Mana regeneration is increased by 300%". When I only have Vision Quest as a passive my regen is 20, when it is active it is 80. This is 20+60 (300% of 20) which is correct. When I use Spiritual Attunement my regen is 27, yet Vision Quest only grants 60, instead of 81 like it should. These number are straight from the character details page under Mana Regenerated per Second.