Abarekiller is always the one that muddies the issue, with other 3 man teams gaining additional members being core (Liveman, Go-On (Until their actual 6ths), Geki, etc).

Not what I meant.

What if we have another technological sentai powered by mystical powers ?

I know, I was kidding around ;)

A theory on him is either AbareMax or "AbarePink". Both appeared before Killer actually joined the team. Additionally, his suit is different in style than the rest of the core Abaranger. AbareBlack is also technically different, but no so much as Killer.

But isn't AbareMax just Abared's upgraded form (Haven't read up much on Abaranger)?
Pink is just a joke character, while Black is treated as part of the core team.

AbareMax however is simply Red's power up. It isn't even about how different the suits are or if he has a different henshin. The core criteria for being a sixth ranger is to be the SIXTH ranger to join the team/appear. Killer is the fifth. Why does AbarePink not count? Because it was a joke for an episode and done to show Emiri's parents that she could handle herself while being alone.

It could be good or it could be bad. What are you asking here?

Why do dinosaur Sentai always feature a member dying?

Who died in Kyoryuger?