Harness the cosmic energy of the 12/12 portal with crystals like amethyst for intuition, clear quartz for healing, selenite for clarity, rose quartz for love, and black tourmaline for protection.
but only temporarily - she cannot sustain the healing for too long. As a tank, Xenon can be decent in the early game, but falls off quickly, even as soon as chapter 2 or 3 (depending on your team).