I can see the TR line has made a slight attempt at the Headmaster gimmick of taking on the techspecs/abilities of any headmaster unit inserted.

Darkmoon; Cloaking Ability, Hyperfire; Speed Boost, Nucleon; Universal Systems Upgrade (Unstable), Fracas; Absorb Abilities ( Rogue-X-men comes to mind). I can't believe they paired Scourge with such a dangerous ability!

It's a pity they didn't write up abilities for the solo Headmaster Units, eg; I bet Brawn would increase Strength,etc... Pretty slack effort on Hasbro's behalf I believe considering the ones they did incorporate were barely a sentence long.