Yup, all contested rolls and such are 2d6 and then rest is just calculating formula (HP, damage, defenses etc). Nice see you excited of the BESM system :). It can be handful when making chars on it but when do the system crunch it's easy then.
Even the creation is coming easily-like I said, this was an Anima character and Anima is all about the Point Buy, so this, this is simple.
I'm thinking aside from Shapeshifting, also giving Faye Alternate Form (Demonic), Healing, Flight, and maybe a couple others before spending the rest on skills.
As for the shapeshifting itself, think Mystique from X-Men, and less the character who is my avi (my avi is Faye the Shapeshifter from Lemonfont's Shapeshifter series, and she is incredibly OP. I'm only taking the name.)