"H" is for "Hippoid" [Metamorphosis Alpha Version]

Hippoid

Number Usually Appearing:  1-3
Armor Class:  3
Movement (Yards / Turn):  8
Hit Dice:  9

Mutations:  Heightened Brain Talent, Heightened Intelligence, New Body Parts (Photosynthetic Skin), No Sensory Nerve Endings [D], Telekinesis

Hippoid (Hippopotamus):  This gregarious, creative biped stands a beefy 7' tall and is wholly immune to pain.  Hippoids are skilled body modification artisans, and each sports numerous tattoos, piercings, implants, and decorative scars / brands.

The creatures are psionically attuned to electrical current, and with minimal concentration, can pinpoint the location of any functional artifacts within a one-mile radius.  Hippoids are also photosynthetic, and heal 4x as quickly in lit environs; conversely, they move 50% slower in the dark, and suffer -2 to Saving Throws versus temperature-related attacks.

"H" is for "Hippoid" [Mutant Future Version]

Hippoid

No. Enc.:  1d4 (1d4)
Alignment:  Neutral
Movement:  120' (40')
      —Swim:  60' (20')
Armor Class:  3
Hit Dice:  13
Attacks:  1 (bite, punch, or weapon)
Damage:  2d8, 2d6, or by weapon
Save:  L13
Morale:  10
Hoard Class:  XVIII
XP:  6,900

The creative and gregarious hippoids are beefy, 7' tall bipeds that are wholly immune to pain.  They are skilled body modification artisans, and each hippoid sports numerous tattoos, piercings, implants, and decorative scars / brands.  They're the only race in the Mutant Future that doesn't blanch at the words "recreational dentistry".

Hippoids are psionically attuned to electrical current, and with minimal concentration, they can pinpoint the location any functional artifacts within a 2-mile radius.

Mutations:  Epidermal Photosynthesis, Increased Willpower, Neural Telekinesis, Quick Mind, Pain Insensitivity [D], Unique Sense ("Electro-Sense")

"C" is for "Czarfish"

Czarfish

No. Enc.:  1 (1d4)
Alignment:  Chaotic
Movement:  18' (6')
      —Swim:  60' (20')
Armor Class:  3
Hit Dice:  5
Attacks:  2 (spine-shards)
Damage:  1d6 / 1d6
Save:  L5
Morale:  9
Hoard Class:  XXII
XP:  2,300

Czarfish are 1'-diameter echinoderms adorned with glowing, crystalline growths.  They can launch 2 shards per round at a range of 20'.

The megalomaniacal czarfish embed themselves in targets (animals, humanoids, and even sentient plants), then slither headwards to be worn as "crowns".  A czarfish's Parasitic Control requires only 1 round of contact to be effective, instead of the usual 3.  Psychic leeches, czarfish drain 1d3 WIL points from their hosts per day.

In melee combat with a czarfish and its "mount", the Mutant Lord should apply all damage to the host first; only called shots with natural To Hit rolls of 18-20 hit the czarfish.  But mental attacks apply against the parasite first, which has a Willpower score of 15+1d4.

Czarfish ordinarily live marine existences, but can survive on land (attached or otherwise) for 5 days.

Mutations:  Energy Ray (Laser / Light), Force Screen (Greater), Increased Willpower, Metaconcert, Mental Barrier, Mind Reflection, Mind Thrust, Neural Telepathy, Parasitic Control (Modified), Precognition, Spiny Growth (Medium)

"L" is for "Luminoid"

Luminoid

No. Enc.:  1d4 (1d4)
Alignment:  Neutral
Movement:  90' (30')
         —Fly:  45' (15')
Armor Class:  -3
Hit Dice:  10
Attacks: 1 (weapon)
Damage:  by weapon
Save:  L10
Morale:  10
Hoard Class:  XXII
XP:  5,900

The otherworldly invaders nicknamed "luminoids" are vaporous beings contained within neon-infused membrano-suits.  Other than being nocturnal, almost nothing is known about luminoid biology.

Luminoids require their skeleton-like garb to maintain cohesion, and it's presumed their abilities derive from the tech instead of mutations proper.  Most physical attacks pass harmlessly through the suits' permeable shells, but electricity-based assaults scramble the circuitry and target as if against AC 1.

Feared across the Mutant Future, luminoids capture wildlife and sentients alike for study and experimentation, and plunder all Ancient tech they find.

Mutations:  Control Light Waves, Energy Ray (Laser / Light), Enhanced Vision (Night, Thermal, Ultraviolet), Plane Shift, Teleport