[Snake]

[strike]40% SKI, 25% CEL 25% RES
If airborne: Wind damage (UL+2) and knocks back.
If critical hit: Dark damage (UL+2) and removes airborne.[/strike]
Edit: Read below.

And it can get those scalings because it's a 10* item, quite damn rare (drop rates are insane.) and nobody has it. And it's a gun, guns got nerfed so no worries, they're deemed to be bad always.
There you go.