Lightning Absorption: Whenever the shambling mound is subjected to lightning damage, it takes no damage and regains a number of
Hit Points equal to the lightning damage dealt.
Multiattack: The shambling mound makes two slam
ATTACKS. If both
ATTACKS hit a
Medium or smaller target, the target is
grappled (escape DC 14), and the shambling mound uses its Engulf on it.
Slam:
Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) bludgeoning damage.
Engulf: The shambling mound engulfs a
Medium or smaller creature
Grappled by it. The engulfed target is
blinded,
restrained, and
unable to breathe, and it must succeed on a DC 14
Constitution saving throw at the start of each of the mound's turns or take 13 (2d8 + 4) bludgeoning damage. If the mound moves, the engulfed target moves with it. The mound can have only one creature engulfed at a time.