ponyfinder.net

Nope.

Shadow Caster feels superfluous. Other than that, improved.

Them is not Sombra, who has ceased really being one.

You can find pictures of them on google. They are shadowy figures, no brand/cutie mark.

There's not too much there to help them be ultra scary, besides benefitting from being in thematic lighting. Also, did they have cutie marks?

All you need is the campaign setting, unified Edition.

Feel free to cook up some new ones if you wish.

As copied from the PFSRD: Core Races Dwarf Add ¼ to the natural armor bonus of the shaman’s spirit animal. PRG:ACG Elf Add 5 feet to the range of a chosen shaman hex. Multiple bonuses from this ability can apply to the same hex, to a maximum of an additional 30 feet for any single hex. PRG:ACG Gnome...

The easiest way, copy existing bonuses.

'with the selected natural attack' should just say 'with gore'.
Other than that, looks alright, but favored classes should come with a selectable bonus each.