Stonefin (5e Creature)
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Large elemental, neutral
Proficiency Bonus +3
Earth Glide. The stonefin can burrow through nonmagical, unworked earth and stone. While doing so, the stonefin doesn't disturb the material it moves through.
Multiattack. The stonefin makes two attacks: one with its bite and one with its slam.
Bite. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) piercing damage.
Slam. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) bludgeoning damage.
Stonefins are shark-like elementals made up of earth and water that can freely swim through solid earth and water alike, often attacking from ambush. A stonefin's body is mostly made of mud with many scattered flecks of stone, including a large stone on its back reminiscent of a shark's fin. When stonefins attack, the only warning that their targets get is usually a stone sticking out of the ground and rapidly moving closer.
Elemental Nature. A stonefin doesn't require air, food, drink, or sleep.