Nemean Lion (5e Creature)
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Huge beast, any chaotic alignment
Skills Intimidation +7, Perception +6
Impenetrable Skin. Melee weapon attacks made against the lion have disadvantage.
Pounce. If the lion moves at least 20 feet straight toward a creature and then hits it with a claw attack on the same turn, that target must succeed on a DC 18 Strength saving throw or be knocked prone. If the target is prone, the lion can make one bite attack against it as a bonus action.
Running Leap. With a 10-foot running start, the lion can long jump up to 30 feet.
Multiattack. The lion makes three attacks: one with its bite and two with its claws, or three with its claws.
Bite. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 15 (2d12 + 5) piercing damage. If the target is a Huge or smaller creature, it is grappled (escape DC 18). Until this grapple ends, the target is restrained, and the lion can't bite another target.
Claw. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 17 (2d8 + 5) slashing damage.
Thundering Roar (Recharge 6). Each creature within 120 feet of the lion that can hear its roar must succeed on a DC 18 Constitution saving throw. On a failed save, the creature takes 22 (4d10) thunder damage and is knocked prone. On a successful save, the creature takes half as much damage and isn't knocked prone.
Swallow. The lion makes one bite attack against a Medium or smaller target it is grappling. If the attack hits, the target is also swallowed, and the grapple ends. While swallowed, the target is blinded and restrained, it has total cover against attacks and other effects outside the lion, and it takes 15 (4d6) acid damage at the start of each of the lion's turns. A lion can have only one creature swallowed at a time.
The nemean lion is a ferocious beast that seeks to be left alone to curse its fate. Those who dare to face it and disturb its solitude will meet a fate worse than the lion's by far. Some people suspect the creature's existence, yet do not fear him. Those who don't are often dead or have gone missing in the wilderness.
Hunter of Men. Though the nemean lion is a creature of solitude, it will leave its home to hunt for food. Its food can consist of any living creature like deer, goats, and even wolves. However, if the lion ever tastes the flesh of mortal man, it will mercilessly hunt any it can find and eat its fill.
Curse of the Gods. The nemean lion's existence is a curse that has been bestowed by the gods to mortal villagers not as a punishment to them but as a punishment to the gods they worship and for the temples they have, for the wars of the gods affect all mortals with no exceptions.
Huge Terror. The nemean lion is a problem for the people of Nemea; they could neither kill the lion nor keep it from killing them or their livestock. The nemean lion is said to be twice the size of a normal lion, with an appetite to match.
The Impenetrable Skin. The skin of the mighty nemean lion is thought to near impenetrable; its claws are one of the few things that can be used to skin the hide of this mighty beast. Thus, a lot of merchants and adventures would kill to have their hands on such an eccentric item, believing it would make a good protective armor to use.