[@Fourze]
Now done looking over your CS. As for everyone, there's a few things.
1. The Excalibur. I'm totally fine with cutting through rock, shooting through it however, should be a lot harder, so perhaps not rock-piercing bullets?

2. Then, some functions like the overclock and the infuser. Battles (in real life, at least) don't last all that long, so perhaps  reduce the time limit?

3. Small note about the yeti-form. It's cool it quickly freezes water, but it should take a while to freeze larger and/or salt bodies of water. Since you'd kinda end up with a block of ice around your claw normally. Great for catapulting, less great for spreading the cold.

Then, once that's done and you've added the detailed backstory I'll take another look ^-^
I'm looking forward to seeing your character's completion.