Nukalevee

A nukalavee appears to be a man with two swords, one in each hand, riding on a horse that seems impossibly nimble. However, both “man” and “horse” are the same slimy dark green color. The nukalavee can sprout new arms out of its body and wield weapons with them (usually swords or clubs). As it moves, the horse leaves a trail of water behind it, and water gushes from its wounds as it fights. Once slain, the nukalavee slowly melts away, leaving only a pile of disgusting green slime behind, looking much like the algae on a pond.
Glory Won 100; SIZ 25, DEX 8, STR 20, CON 15; Move 4; Armor 5; Unconscious 12; Major Wound 15; Knockdown 25; Hit Points 45; Healing Rate 5; Damage 5d6. Combat Skills: Club* 14 (–1d6), Sword* 16. Significant Skills: Avoidance 0. Valorous Modifier: +0.
* Multiple Attacks: A nukalevee may make any number of sword or club attacks per round, each using its appropriate skill value (i.e., of 16 or 14, respectively each attack may be directed at a separate opponent within reach, or it may make 2 sword attacks at the same foe. A character attacked by both must defend separately against the two attacks, as if he were attacked by two different opponents (see “Multiple Opponents” in Pendragon, Chapter 6). Being essentially a single creature resembling both man and horse, the nukalevee can be attacked only by 2 riders or 4 men afoot at the same time.