[quote=NarcissisticPotato]
I'll have to go with Archmage on this one, the potential to kill is very high so I'll only allow it on inanimate objects and can only be shot a certain distance away. Maybe there could be a slight delay as well so he isn't opening portals under people's feet and having another portal at the top of a building?
[/quote]

Considering it took my "break an otherwise balanced power" example to show you that guy was broken, you might as well list out all the powers everyone has and I can tell you how they can be game breakers... Might be a bunch more just sitting there without you noticing.

And for future reference. I like to make my characters based around the City of Heroes style of hero making. One major offense power, one major defense power, a unique power, and maybe a power for travel. In Light's case its Super Strength/Toon Regen/Reality Shift/None I just split up toon physics and toon regen to make them more clear, but they're mostly the same thing.