Reddit reviews Snake Eye Tactical 27.5" Large Blood Rayne Ninja Forearm Vampire Zombie Machete Sword Blade Knife

You strap them to your arms.

Here you go

Looks like a post on r/mallninjashit

I think it's from blood Rayne actually, the Nazi vampire thing edit: found it, definitely from blood Rayne https://www.amazon.com/Large-Forearm-Vampire-Zombie-Machete/dp/B00BMD47HG

Well in that case, i think the Death motif is far too common. Maybe something more assassin-y but also relatively unique. He could have bladed knuckled gloves and be a monk type rogue.

He could have spring loaded forearm blades ala bloodaryne:
https://www.amazon.com/Large-Forearm-Vampire-Zombie-Machete/dp/B00BMD47HG

just $24.95 on amazon

They're actually [sold like that] (https://www.amazon.com/Large-Forearm-Vampire-Zombie-Machete/dp/B00BMD47HG)