Slugasque (5e Creature)
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Tiny monstrosity, unaligned
Legendary Shell. If the slugasque takes the Dodge action, it withdraws into its seemingly invincible shell. While benefiting from the Dodge action, it has advantage on all saving throws, and is immune to both fire and poison damage.
Reflective Carapace. Any time the slugasque is targeted by a magic missile spell, a line spell, or a spell that requires a ranged attack roll, roll a d6. On a 1 to 5, the slugsque is unaffected. On a 6, the slugasque is unaffected, and the effect is reflected back at the caster as though it originated from the slugasque, turning the caster into the target.
Slam. Melee Weapon Attack: +2 to hit, reach 5 ft., one target. Hit: 3 (1d6) bludgeoning damage.
The slugasque can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The slugasque regains spent legendary actions at the start of its turn.
Attack. The slugasque makes one slam attack.
This fist-sized creature resembles a slug mixed with a hermit crab. Though oddly aggressive for such a humble-looking creature, it seems unremarkable to most wanders who might encounter it amid witch-infested bogs and misty mangroves. The most knowledgeable of sages will recognize the matte brown shell of the snail as what it truly is: a tiny bit of the carapace from the cataclysmic monstrosity, tarrasque. Indeed, the shell itself is seemingly invincible, and might even be supernaturally influencing the creature. Who knows how this little thing gained such a prized shell?