Stonehorn (5e Creature)
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Huge monstrosity, unaligned
Saving Throws Str +11, Con +9, Wis +5
Beast of Stone. All bludgeoning, piercing and slashing damage dealt to the stonehorn is reduced by 10.
Devastating Charge. If the stonehorn moves at least 20 feet in a straight line, it may pass through Medium or smaller creatures whilst moving further along in the same straight line. The stonehorn may make a gore attack against each creature passed through in this way. The stonehorn may not take any action until it has finished moving, or end its movement in the same space as another creature, whilst using this ability.
Gore. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 23 (3d10 + 7) piercing damage. The target must succeed on a DC 17 Strength saving throw or be knocked prone. If the stonehorn uses the Dash action, it may make one gore attack as a bonus action.
Stonehorns are massive beasts of muscle and violence, each several times the size of a rhino and, if it can be believed, several times as dense. Intelligence is of little import to these great beasts however, for each stonehorn is quite literally a living fossil, its skeleton hardened by the same rock as the mountains where it makes its home. As legendary as their hardiness is their belligerence; in fact it is said that a stonehorn will take any opportunity to headbutt something to death and trample its corpse into paste. Such is its colossal mass that the impact of its charge is like a boulder plummeting from a mountaintop, a deadly combination of weight, momentum and bad temper.
Stone Brute. Territorial to the extreme, a stonehorn's first inclination is to charge any creature that comes within view. This is no mere bluff or half-hearted measure to scare off any who draw near, but instead a full-tilt attempt to use its horns and bulk to pulverise anything in its way. Few can bear the brunt of such a collision; the stonehorn can smash mountains asunder, so what hope does a creature of flesh and blood have to stand before such a beast?
Living Rock. Stonehorns live by 'mining' rock, breaking off suitable chunks by smashing their impressively horned heads into the largest rock facings they can find. Deposits of precious stone and seams of rare metal are favoured, but the creature will also use its iron-hard molars to crunch up mundane rubble or any mammals caught out of their dens. In their constant quest to headbutt things, stonehorns often scrape skin, tendon and meat from their faces, leaving bare patches or glimpses of a skull-like mask.