Elemental Crystal (check out my video)

Buy from Withers
Choose melee or ranged
"Use" the crystal
A permanent status is applied to the weapon
You can change to ranged or melee if you want another weapon to have the status
The status adds another version of dip. One version for melee and a version for ranged weapons (depending upon what is equipped)
You can now dip in fire, water, ice, acid, blood (necro dmg), electrified water/ blood and caustic brine. For the last three surfaces you may need to be almost in the surface for it to proc.
You can only have one "Dip" in effect at a time.

Enjoy