Crystalline Nautilus Source: Theros Bestiary TBVXXIII "name": "Crystalline Nautilus (TBVXXIII)" "size": "Gargantuan" "type": "3rd-level transmutation beast" "alignment": "Unaligned" "ac": !!int "17" "ac_class": "natural armor" "hp": !!int "560" "hit_dice": "40d20 + 160" "modifier": !!int "-1" "stats": - !!int "18" - !!int "8" - !!int "18" - !!int "1" - !!int "7" - !!int "1" "speed": "0 ft., swim 60 ft." "damage_vulnerabilities": "fire" "damage_resistances": "bludgeoning, piercing, slashing" "senses": "[Blindsight](../../../Compendium/rules/senses#blindsight) 30 ft. (can't see beyond this radius), passive Perception 10" "languages": "" "cr": "14" "traits": - "desc": "If the nautilus takes 100 or more damage in a single turn, its shell shatters, and it dies instantly." "name": "Glass Shell" - "desc": "The nautilus has [Advantage](../../../Compendium/rules/variant-rules/advantage-xphb) on Wisdom (perception) checks that rely on smell." "name": "Keen Smell" - "desc": "The nautilus's weapon attacks are magical." "name": "Magic Weapons" - "desc": "The nautilus's eyes are useful for detecting light, and not much else." "name": "Primitive Vision" - "desc": "In addition to being a creature, the nautilus is a 3rd-level divine transmutation spell with no target." "name": "Spell Nature" - "desc": "The nautilus glows with the soft light of the night sky, shedding dim light in a 15-foot radius." "name": "Starlight Form" - "desc": "While the nautilus is in any of Theros's three realms, it can magically convey what it senses to Thassa." "name": "Telepathic Bond" - "desc": "The nautilus can breathe only underwater." "name": "Water Breathing" "actions": - "desc": "_Melee Weapon Attack:_ +9 to hit, reach 5 ft., one target. _Hit:_ 24 (8d4 + 4) piercing damage." "name": "Bite" "source": - "TBVXXIII" "image": "Compendium/bestiary/miscellaneous/token/crystalline-nautilus-tbvxxiii.webp"