15 (natural armor)
85 (10d10+30)
walk 30 ft., swim 30 ft.
Deception +3, Insight +5, Stealth +3
blindsight 30 ft.
Olman
3
Kalka-Kylla can breathe air and water.
While Kalka-Kylla remains motionless and hidden in its shell, it is indistinguishable from a polished boulder.
Kalka-Kylla can use a bonus action to retract into or emerge from its shell. While retracted, Kalka-Kylla gains a +4 bonus to AC, and it has a speed of 0 and can't benefit from bonuses to speed.
Kalka-Kylla makes two claw attacks.
Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) bludgeoning damage, and if the target is a Medium or smaller creature, it is grappled (escape DC 13). Until this grapple ends, the target is restrained. Kalka-Kylla has two claws, each of which can grapple only one target.