Chapter Three: The Lower Slopes
Procz's telekinesis opened a narrow aperture through which magic, weapons, and magical weapons could slip. Baern's hammer smashed into the black goop, which ultimately splashed back to burn his leg. Even so, he felt something substantive at the center of the slime, something that squished satisfyingly beneath the blunt force of his hammer. (Baern, you take 4 acid damage)
Frack was not so lucky. His scimitar caught the edge of an old pipe as he swung it down, and the weapon leapt from his hand to land in the black sludge. The slime quickly absorbed the weapon, which vanished from sight. (Frack, you are minus one scimitar)
Vecaal's psychic blades, guided by Kreo's blessing, did was the satyr's fire failed to do, piercing and burning the mucous body.
The wounded slime retaliated, launching a tendril of black ooze at Baern, but the miner easily evaded it. As for its cousin (sibling? twin? clone?), it had disappeared from view.
That Bless made a huge difference! The slime's AC is really poor, so even with 3/4 cover, it only gets to 16. Bless got several attacks over the line!
Same deal for next round: the slime has full cover, which Procz can reduce to 3/4 with his telekinesis. The other slime has presumably burrowed deeper into the pile and is nowhere to be found. Anyone who wishes may spend their action on a Perception check to try to locate it. Procz got advantage when he made this check because of his telekinesis - I'd consider the same for someone else if they have a similarly useful skill/spell.