Valley of the Brain Collectors as a sandbox had plenty of optional encounters. However my players are very focused, it didn’t make sense to their practical hearted characters to disturb every nest in the Scar of the Spider. They stayed on mission. So they actually minimised and avoided contact with the inhabitants totally skipping the Cthulhu Mythos inhabited Fungal Cave. Here are the Voonith with the Pathfinder original here.
Armour Class 14 (natural armor)
Hit Points 85 (9d12 + 27)
Speed 30ft., swim 50 ft.
STR 28 (+5) DEX 15 (+2) CON 17 (+3
INT 10 (+0) WIS 11 (+1) CHA 1 (-4)
Skills Stealth +5
Senses passive Perception 10
Challenge 5 (1,800)
Blood-Freezing Howl. As a bonus action, a voonith can unleash a bloodcurdling howl. All creatures within a 30-foot-radius burst must succeed at a DC 16 Wisdom save or become stunned for 1 minute.
Multiattack. The voonith makes two attacks: one with its bite and one with its claw.
Bite. Melee Weapon Attack: +8 to hit, reach 5 ft., one target.
Hit: 21 (3d10 + 5) piercing damage, if the target is a creature, it must succeed on a DC 16 Strength saving throw or be knocked prone.
Claw. Melee Weapon Attack: +8 to hit, reach 5ft., one target.
Hit: 14 (2d8 + 5) slashing damage.
Planephase Form. The Voonmith partially phases into another plane, gaining insubstantial and phasing until the end of its next turn or until it hits or misses with an attack. This grants the creature resistance to all non-magical attacks.
This brightly colored, long-necked amphibian has six legs, a fanged snout, and numerous finlets running down its spine.