Whenever it receives any kind of healing, the Mass gains Medium Armor and Pseudopod's damage becomes 2d6+2.
- •Pseudopod.
(2x) 1d6+2. On Hit: Grappled (DC 10).
- •Restoration.
If the Grappled creature is holding a healing potion, it absorbs the potion, gaining the benefits of its Affinity for Healing.
- •Subsume.
The mass absorbs one creature it is grappling, DC 10 STR save and take 4d4 damage, half on save.
At 25 HP, the Mass of Flesh summons Flesh Minions (1/hero, size: 1d4). After each hero’s turn, either the Mass of Flesh or all of the Flesh Minions act.
The Mass is getting smaller! 10 more damage and it dies. Until then, attacks against it have disadvantage.
These creatures gain life when the bloody leftovers of sacrificial rituals are collected in one place, infusing itself with the residual magic of the ceremony.
Source: Tome of Beasts 3.