Redcap

Redcaps are a dwarf-like race of warrior fey. They are squat and muscular, around four feet tall. Their name comes from their long, rust-crimson red caps.
Opinions on redcaps vary. Some consider them bloodthirsty killers and murderers, others claim that while they're extremely warlike, they only kill those who can fight back. Either way, drawing a weapon in the presence of a redcap will result in you being attacked.
Redcaps are unnaturally powerful for their size, and grow stronger with every creature they've slain. They can heal incredibly rapidly and resist most forms of attacks to some degree. Their power grows even more potent when wearing their caps, which absorb some of the strength of those whose blood they're dipped in.
According to some legends, redcaps are more primal, powerful versions of dwarves, ones created closer to the dawn of time. They heavily dislike the gods, and dislike those who're fervent devotees of them.
There are only three things redcaps truly value: blood, weapons, and skill at arms. They have greater respect for weapons than most beings have for fellow sapients, and as such are very particular on who is allowed to wield a weapon.
While excellent at forging weapons, redcaps rarely have the patience to dedicate to learning artificing, nor the contacts necessary for crafting enchantments.