13 (natural armor)
110 (17d10 + 17)
20 ft.
psychic
blinded
blindsight 60 ft. (can't see beyond this radius)
10
+4
If the cluster fails a saving throw, it can choose to succeed instead.
The cluster has advantage on saving throws against spells and other magical effects.
The cluster makes two Slam attacks. It can replace one of these attacks with Spawn Progeny if available.
Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 17 (2d10 + 6) bludgeoning damage plus 10 (3d6) psychic damage, and if the target is a creature, the target must succeed on a DC 18 Strength saving throw or have the prone condition. If this attack reduces the target to 0 hit points, the target immediately dies and is consumed by the cluster.
The cluster bulges and spews 1d4 mature eggs. Each egg lands in an unoccupied space of the cluster's choice within 30 feet of itself and immediately transforms into an encephalon gemmule. The gemmules obey the cluster's commands and take their turns immediately after it.