Give Limbo get the Mephisto Aura Treatment
Magik's Limbo is a very frequently complained about ability, due to it's unavoidable damage nature. Damage that quite often will result in the majority of the damage she does in a fight.
Then how about giving her Limbo a similar effect to Mephisto's aura, where it only does damage when she is close to her opponent? It removes the fully unavoidable component that is the chief source of complaints.