Geovishap (5e Creature)
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Large dragon, unaligned
Elemental Infusion. Once bloodied, the geovishap infuses itself with whatever nonmelee damage type is most evident in its surroundings, including topography, weather, and magic. The geovishap deals an extra 5 (1d10) damage of that type to any creature it damages with a melee strike. Additionally, it gains immunity to that damage type.
Overland Travel. When not in combat and given 2 minutes to get up to speed, the geovishap can run up to 50 miles per hour.
Jump. The geovishap leaps up to 30ft. twice, each time attacking with its claws upon impact. The geovishap has advantage on both of these attacks, but all attacks made against it until the start of its next turn also have advantage.
Charge. The geovishap charges up to 20ft. and does not provoke opportunity attacks, then makes two attacks with its claws.
Claws. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 16 (2d10 + 5) slashing damage.
Stone Spikes. Magical Ranged Attack: range 20 ft., burst 8 ft.. Hit: 23 (4d8 + 5) piercing damage, Dex save for half damage DC 15.
Crystallize. When hit with an attack of a nonmelee damage type, the geovishap gains resistance to that damage type for 1 minute or until it uses this ability again. The triggering attack still deals its original damage.
Geovishaps can be found in any mountainous or hilly regions, regardless of environment. They are large reptiles that look slightly ape-like in stature and size, except for their varying shades of brown and gray that resemble rock or uneven earth which cause the untrained eye to confuse one with a large boulder. They are also said to be descendants of dragons, though no zoologist has confirmed this. Geovishaps are solitary predators that only come into contact with other geovishaps to mate. Their eggs are roughly two feet tall and cannot be told apart from a normal rock. They feed on any horse-sized animals, relying on their speed and endurance to outrun and catch their prey. Given their wide range of habitats, geovishaps have become accustomed to eating any creatures big enough to satisfy their hunger, including humans. While geovishaps are extremely well adapted to chasing down their prey over long distances, they always return to their den. Geovishap dens are typically just small caves or other such shelters, where they would rest and where a female might raise her young.