Lucky Devil

That's almost too much luck for one person. If something's really, really rare - it probably falls into your lap sooner or later. Congratulations!

To get this achievement you need to fish a Leviathan's Amulet from the corpse of a Water Elemental or Massive Water Elemental AND unrust a Golden Armor out of a Slightly Rusted Armor.
See also: Water Elemental/Fishing Statistics, Massive Water Elemental/Fishing Statistics, and Slightly Rusted Armor/Unrusting Statistics