Actually, I would make a power from scratch called "Training" and the effects I would include in it are all of the ones from Super Strength, Super Dex, flight, running, Energy blast, and Protection, so
1 base
10 effects
so 11pp a rank
I would buy 1 or 2 ranks of training, and then buy boost(powers) with the flaw obvious, and duration extra twice making it sustained for a final cost of 3pp a rank, so a fighter would look like this regardless of Race:
Training +2(11pp a rank, 22pp)
Boost +8(Duration x2, Obvious, 3pp a rank, 24pp)
As a character gets stronger, add to their training ranks to make them tougher all the time, or add to their boost to make them like Freiza, he looked like a Joke, but was soo good at powering up that he was able to take on almost anyone until Super Goku knocked him on his butt.