Draugr

This barnacle-encrusted walking corpse looks like a zombie, but is dripping with water and gives off a nauseating stench.
 

Draugr (CR 2)

Medium Undead (Water)
Alignment: Chaotic Evil
Initiative: +0
Senses: Darkvision 60 feet, Perception +6
  Speed: 30 feet, Swim 30 feet
Space: 5 feet
 

Defense

Armor Class: 14, touch 10, flat-footed 14 (+2 armor, +2 natural)
Hit Points: 19 (3d8+6)
Saving Throws: Fort +2, Ref +1, Will +3
Damage Reduction: 5/bludgeoning or slashing
Immunity: undead traits
Energy Resistance: fire 10
 

Offense

Melee: greataxe +5 (1d12+4/x3 plus nausea) or slam +5 (1d10+4 plus nausea)
Reach: 5 feet
 

Statistics

StrDexConIntWisCha
17 (+3) 10 (+0) - 8 (-1) 10 (+0) 13 (+1)
Base Attack Bonus: +2
CMB +5
CMD 15
  Feats: Toughness
  Skills: Climb +9, Perception +6, Stealth +6, Swim +11
  Languages: Common (cannot speak)
 

Special Abilities

Nausea (Su)

A creature that is damaged by a draugr must make a DC 12 Fortitude save or be nauseated for 1 round. The save DC is Charisma-based.
 

Ecology

Environment: Any Coastlines
Organization: solitary or crew (2-8)
Treasure: standard (greataxe, leather armor, other treasure)

  Draugr smell of decay and the sea, and drip water wherever they go. These foul beings are usually created when humanoid creatures are lost at sea in regions haunted by evil spirits or necromantic effects. The corpses of these drowned sailors cling fiercely to unlife, attacking any living creatures that intrude upon them. Their attacks smear rancid flesh, rotting seaweed, and swaths of vermin on whatever they hit.
  In the case of draugr who manifest when an entire ship sinks, these undead usually stay with the wreck of their ship. Some draugr may be found under the control of aquatic necromancers, while others may wander the seas as undead pirates aboard ghost ships.
  DRAUGR CAPTAIN (CR 3)
  Draugr captains have malevolent, burning red eyes. They may be more richly dressed than other draugr, though their clothes are always in a similar tattered condition. A draugr captain is a draugr with the advanced simple template. In addition to this, most draugr captains have additional class levels, usually as barbarians, fighters, or rogues.
  Draugr captains can also use obscuring mist as a spell-like ability (CL 5th, concentration +8) three times per day, and instead of causing nausea with a successful hit, they bestow 1 negative level on a hit. A draugr captain can even bestow a negative level via a weapon it wields, but if it gains multiple attacks with a weapon, it can only bestow 1 negative level per round in this manner.