The official GemStone IV encyclopedia.
Standing somewhere near average height for a human, the muscular supplicant is a lean frame of wiry muscle covered by scarred and dry skin. A great mop of greasy hair covers her eyes, twisted up in long braids. Intricate tattoos cover the exposed flesh, drawing unrecognizable patterns.
Like other creatures that use two-handed weapons, removing an arm will remove them from being a threat.
Supplicants can be very quick. Weapon users might want to wait till they have performed a mstrike - the extra roundtime can be quite helpful.
Muscular supplicants have an extremely quick roundtime between swings, approximately 3 seconds. In addition to this, they regularly perform three swing multistrikes. They also have the ability to break stuns - this ability seems to have about a 50% chance to fail, leaving them still stunned. They are moderately difficult to stun - shots that would easily stun a hierophant or dogmatist might not stun a supplicant.
Supplicants pose very little threat if your DS is high enough. A pure standing in guarded will find them to be completely harmless.
While emaciated hierophants and hunch-backed dogmatists seem to regard supplicants as an ally, casting defensive spells on them or resurrecting them, the supplicants seem to share no such affinity, and will attack them freely.