PC on Weird Axe. Never seen this.

Icy Grinning Dragon Axe of Shelter
Cold Damage: 6-28 (Req 9 Axe Mastery)
Damage +15%
- 1 Energy Regeneration
Armor +7 vs. Physical Attacks

Anyone have an idea on the value?

Looks like a good skin.

list of skins ordered by favor:
gothic dual axe
zodiac axe
gothic axe
celestial axe
runic axe
gemstone axe
dragoncrest axe
mammoth axe
grinning dragon axe
halo axe
archaic axe
jade axe
kaineng axe
morningstar
plagueborn axe
sickle

-> yours is in the middle.
nice dmg mod though.
no idea on market prices. sry.

Anyone have a guess?

Bad dmg mod, unwanted skin. Run a search for "WTB -1 energy", might get 5k for it from someone in need of a suicide weapon. Otherwise merchant it.

Agree with Oofus. If you're desperate, market it as a suicide weapon ..

I'd salvage, however. You can get 3-5k for a +7vs phys. Inherent to a lot of W solo farm builds.