[What a weird monster. The name suggests some kind of link to Eurynomos, a Greek underworld entity that is obscure to the point of existing in only one surviving source. But how it went from a monster that is associating with rotting corpses to an okapi monk that hates the undead is quite the logical leap. Maybe they changed the name to keep people like me from complaining about how dissimilar it is to its mythological source (see the "if I ran the zoo" tag for some examples)]
Eunemrvo
CR 5 LN Monstrous Humanoid
This humanoid creature is tall, muscular and dressed only in a light wrap. It has the head of an okapi, and pebbly scales grow along its chest and back.
The eunemrvo are beings native to the Positive Energy Plane, but most of them are found in the Material. The reason for this exodus is that the main focus of their culture is destroying the undead, and these are much more common on other planes. A eunemrvo has no ability to traverse the planes itself, and most of them spend their entire lives beyond childhood on a quest to kill undead. They view ordinary mortals as somewhat suspect, and only make allegiances with humanoids if they have proven themselves a stalwart foe of undeath. They are more likely to ally with psychopomps, jyoti or lumi. Still, these alliances are usually limited to a particular haunted site or dungeon—in the long term, eunemrvo prefer their own company above that of others.
Eunemrvo prefer terse conversation to violence, except against undead creatures and those using or allied with the undead. In combat, a eunemrvo often wades into the thick of it, crushing bones under its radiant fists. They can create powerful bursts of positive energy that harm the living and the dead alike, but this ability exhausts a eunemrvo, making it a weapon used only under duress. Eunemrvo will typically fight to the death to stop the plots of undead creatures, asking only that their bodies are destroyed or sanctified so they cannot become undead themselves.
Eunemrvo are tall for Medium creatures, averaging between six and seven feet in height. They are mortal, but their lifespans are long, equivalent to those of elves.
Eunemrvo CR 5
XP 1,600
LN Medium monstrous humanoid (extraplanar)
Init +5; Senses darkvision 60 ft., Perception +10
Defense
AC 18, touch 16, flat-footed 12 (+5 Dex, +1 dodge, +2 natural)
hp 52 (5d10+25)
Fort +5, Ref +9, Will +6
Immune death effects; Resist negative energy 5
Defensive Abilities positive energy affinity, retributive suplex
Offense
Speed 40 ft.
Melee unarmed strike +9 or +7/+7 (1d8+4)
Psychic Magic CL 5th, concentration +8
8 PE—chill touch (1 PE, DC 14, undead only), disrupt undead (1 PE), sanctify corpse (2 PE)
Special Attacks positive strikes, tide of creation
Statistics
Str 18, Dex 21, Con 18, Int 17, Wis 14, Cha 17
Base Atk +5; CMB +9 (+11 trip); CMD 25 (27 vs. trip)
Feats Combat Expertise, Dodge, Improved Trip, Improved Unarmed Strike (B)
Skills Acrobatics +9 (+13 when jumping), Climb +11, Intimidate +10, Knowledge (planes, religion) +8, Perception +10, Stealth +12, Swim +11
Languages Celestial, Common, Lumi, Necril, Requian
SQ monastic training
Ecology
Environment any land or underground (Positive Energy Plane)
Organization solitary, pair, cell (3-6) or monastery (7-24 plus 1-4 3rd-5th level sensei)
Treasure incidental
Special Abilities
Monastic Training (Ex) A eunemrvo gains Improved Unarmed Strike as a bonus feat, and gains the unarmed damage and flurry of blows of a 5th level monk. Monk levels stack with eunemrvo racial HD for the purposes of unarmed strike damage and flurry of blows, but not for other class abilities such as speed or AC bonus.
Positive Energy Affinity (Ex) A eunemrvo does not have any benefits or penalties from being on a positively aligned plane. Cure spells always heal a eunemrvo for maximum damage.
Positive Strikes (Su) A eunemrvo’s unarmed strikes deal an extra 1d6 points of damage to undead creatures and other creatures harmed by positive energy, and are considered to be ghost touch weapons for the purposes of attacking incorporeal creatures.
Retributive Suplex (Ex) When a creature critically misses a eunemrvo in melee combat, the eunemrvo can attempt to make a CMB check against it. If the eunemrvo succeeds, the enemy is moved to an empty square adjacent to the eunemrvo and knocked prone. This is treated as an attack of opportunity on the eunemrvo’s part.
Tide of Creation (Su) As a standard action, a eunemrvo can weaponize the positive energy in its body, filling a 30 foot line or 15 foot cone with searing light. All creatures in that area take 5d8 points of damage (Fortitude DC 15 halves); this deals double damage to creatures harmed by positive energy. A eunemrvo that uses this ability is exhausted. A eunemrvo cannot use its tide of creation ability if it is exhausted. The save DC is Charisma based.