Got my Razerthorn Ravager to loyalty level 4 yesterday evening.
So I guess loyalty level 6 is no problem either. ^_^

And no, it doesn't come with any skills when you tame it, so here's what I did:

I first tamed a level 63 Rip-Blade Ravager so that it could teach me Gore 9 /Dash 3.
(Dash 3, I really didn't need, because my cat already had it)

I attacked one enemy with the Rip-Blade, it taught me Gore 9 immediately, so I went straight up to where the Razerthorns are, abandoned the Rip-Blade on the spot and tamed me a lvl 70 Razerthorn. :-)

Pity to let the Rip-Blade go actually, cause they're so much prettier I think (with the changing colours and all), but I didn't feel like leveling it to 70.

But I hope this answers some loyalty questions here. ;-)
Good luck and have fun.