@BCTheEntity I'm looking over @Archmage MC's sheet again. I figured the abilities of the portals sounded basically the same as the Portal gun from the games of the same name, so with that in mind I'd assume she *couldn't* place portals on gas or liquid, or probably uneven surfaces, so if I'm right that shouldn't be a problem. That also makes avoiding a portal cut much easier.
In regards to what you said about the portals changing size, that make makes sense in reality, but since Arch didn't put that in their sheet I'm assuming vaporization isn't a concern. The fact that this is SU and "gem magic" is a common explanation when viewers are expected to ignore certain things about the laws of physics should put your primary concern to bed.
Beyond that, I can see how having three different, reasonably powerful sub-abilities may be a *bit* overpowered this early in the game and will consider asking Arch to tone it down. I've run it by my co-GMs and I'll ask @Pyroman and @Loony if they have any issues or if I'm missing anything.
Also, I've never accepted this character before because I wasn't the GM before. The two GMs of the last RP Archmage and I were part of, both of whom are very good about catching OP abilities, accepted this character and we had no problems during the game.