Rathalos (5e Creature)
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Huge dragon, unaligned
Saving Throws Str +12, Dex +5, Con +13, Wis +10
Legendary Resistance (3/Day). If the rathalos fails a saving throw, it can choose to succeed instead.
Bite. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit: 18 (2d10 + 7) piercing damage. If the target is a creature, it must succeed on a DC 21 Constitution saving throw or be poisoned for 1 minute. While poisoned, the target takes 7 (2d6) poison damage at the end of each of its turns.
Fire Breath (Recharge 5-6). The rathalos exhales a gout of flame at a point it can see within 60 feet of it. Each creature in a 20-foot-radius sphere centered on that point must make a DC 21 Dexterity saving throw, taking 63 (18d6) fire damage on a failed save, or half as much damage on a successful one. The fire spreads around corners, and it ignites flammable objects in that area that aren't being worn or carried.
Aggressive. The rathalos moves up to its speed toward a hostile creature that it can see.
The rathalos can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The rathalos regains spent legendary actions at the start of its turn.
Detect. The rathalos makes a Wisdom (Perception) check.
The mighty rathalos is an apex predator that prefers to attack from above, launching fireballs upon those below. The rathalos has red scales and many monster hunters consider hunting a rathalos to be emblematic of their profession. Many guilds display rathalos bones or claws taken from past hunts as trophies.
King of the Skies. While the rathian patrols their shared territory from the ground, the rathalos soars through the sky, attacking any intruders from above.