Earth Glide. The elemental can burrow through nonmagical, unworked earth and stone. While doing so, the elemental doesn't disturb the material it moves through.
Siege Monster. The elemental deals double damage to objects and structures.
Multiattack. The Gem Mole makes two slam attacks.
Slam. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 14 (2d8 + 5) bludgeoning damage.
Gemstone. The Gem Mole grabs a gem/mineral from its inventory or surroundings, and quickly eats it. The creature then gains physical benefits depending on the type of gem eaten. This can only happen once and is a permanent effect.
Fire Gemstone. The Gem Mole has eaten a red/orange or any other gem associated with fire. The creature is now immune to fire damage.
Ice Gemstone. The Gem Mole has eaten a blue/purple or any other gem associated with ice. The creature is now immune to cold and frost damage.
Air Gemstone. The Gem Mole has eaten a white/yellow or any other gem associated with air. The creature is now immune to force and radiant damage.
Earth Gemstone. The Gem Mole has eaten a brown/green or any other gem associated with earth. Because the creature already has earth immunities, the Gem Mole instead gains 2d10 HP.
Description
A burrowing society of rock moles that lives near the ocean, the Burrowing Gem Mole make their homes in ancient, dormant volcanoes and extract gems and other rich minerals from the rock. The minerals are exploited by the Gem Moles using their ability to actually digest them and gain physical benefits from them. They can grow stronger and more durable, depending on the rarity and type of gem.
However, near their homes and deep in the ocean, there exists a coral reef. The coral of this reef is not mortally dangerous to most creatures, however it contains acidic properties that interact with gemstones. This leads to it being more dangerous to the Gem Moles that ingest the stones and can be used as a devastating weapon against the more powerful of their kind.
These creatures are hostile but somewhat isolationist. They will take most sentient creatures living on the island homes (such as colonists) as a threat, but will not go out and raid towns. They however may be able to be placated if they are given a tribute of rich and exotic metals.
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