PS238 - Hershel Clay / Mantium (MHR)

This is the first of my PS238 writeups. I'm planning on doing the faculty as Watcher characters and the kids get the full Hero Writeup. I'm also noodling with adding another rank for abilities like strength and such, "Adult", with Kids getting a d4 as their default stunt die. Thoughts?

Hershel Clay / Mantium
Solo d8 Buddy d6 Team d4

Distinctions: Genius Inventor, Can't Resist Tinkering with Tech, Teacher at PS238

Power Sets: 

Mantium Armor
Enhanced Strength d8, Enhanced Stamina d8, Superhuman Durability d10
Blast d8, Boot Jets d6
SFX: Immunity. Spend 1d6 from the Doom Pool to ignore stress, trauma or complications from environmental hazards.
Limit: Gear. Gear. Shutdown Mantium Armor and step up or add d6 to the doom pool. Spend d6 from the doom pool to recover.

PS238 Teacher Training 
Psychic Resistance d8
SFX: Focus. If a pool includes a PS238 Teacher Training power, you may replace two dice of equal size with one die +1 step larger.
Limit: Conscious Activation. While stressed out, asleep, or unconscious, shutdown PS238 Teacher Training. Recover PS238 Teacher Training when you recover that stress or wake up. If you take emotional trauma, shutdown PS238 Teacher Training until you recover that trauma.

Specialties: 
Business Expert d8
Psych Expert d8
Science Expert d8
Tech Master d10
Vehicle Expert d8