I'd like to see powers that affect the physics of my guardian or of the enemy, or that bypass the laws of nature, or alchemy. For instance a power that lowers my characters mass allowing for greater jumping and speed, or to dampen my inertia or increase it when I land from a fall. A power that can convert the air surrounding an enemy into pure oxygen and heating it (causing him to light on fire), and maybe one that can raise the ground to create a barrier for cover. I write about two of those in my fanfiction here. (Shameless self promoting) https://docs.google.com/file/d/0B8fodwqe4J16aGx3MW5qNzNieU0/edit?usp=sharing