The better man? There is no such thing [base class]

[Rizban]

One extra mutation per level is a considerable boost but not really OP. The teratomorph substitution mechanic may be troublesome, however.

The Limitless mutation is a huge (and frankly pointless) sink - edit or at best a method for acquiring a later ability early. The Skill Boost mutation is a massive sink that is objectively inferior to a most skill mutations or the ability score increase mutations. The Mimic acf is... Kind of a boring class feature, all said.

I submitted a character for that game and came to the same conclusions.

We're doing 1st level characters, and I picked up Limitless to grab a mutation unavailable until 2nd. Next level, that is obviously the mutation I'll be trading out since I will no longer need it to qualify for the mutation. In the end, it's effectively pointless, but it did give a tiny power boost to my 1st level guy by giving me a decent ranged attack I wouldn't have otherwise had. It's not something I would recommend including in other games though.