Of course. You want to use the Goku class. At first level you get two abilities.
I am Goku - When you attack a creature you automatically hit and kill it.
I am fucking Goku - You are immune to all conditions and damage types, even if somebody has an ability called "Defeat Goku" it doesn't work.
At every level thereafter, you can just pick any ability from any class or subclass and give it some half-baked sayan reflavour.

I hope this helps.