Magik Limbo Fix.
So an easy way to 'nerf' Magik's limbo without taking much off her would be making her limbo like ultron's regen, When stunned, she loses her limbo. That way it doesn't affect her ability THAT much and also enables us players to control that unavoidable damage of hers without even getting hit or anything.
Also, the dexterity mastery needs to be changed, either it shouldn't count as a buff or it shouldn't reapply every time when you dodge multiple times (to bait specials or evade). Another way is to take the crit boost away from first level of mastery and add it to later levels. As of now, it makes MD too OP.