Encounter 19 - lvl 5 to 10

3x Manticore Large monstrosity , lawful evil
Armor Class 14 (Natural Armor) Hit Points (8d10 + 24) Speed 30 ft., fly 50 ft.
STR 17 (+3) DEX 16 (+3) CON 17 (+3) INT 7 (-2) WIS 12 (+1) CHA 8 (-1)
Senses Darkvision 60 ft., Passive Perception 11 Languages Common Challenge 3 (700 XP) Proficiency Bonus +2
Tail Spike Regrowth. The manticore has twenty-four tail spikes. Used spikes regrow when the manticore finishes a long rest.
Actions Multiattack. The manticore makes three attacks: one with its bite and two with its claws or three with its tail spikes.
Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: (1d8 + 3) piercing damage.
Claw. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: (1d6 + 3) slashing damage.
Tail Spike. Ranged Weapon Attack: +5 to hit, range 100/200 ft., one target. Hit: (1d8 + 3) piercing damage.
1x Nightmare Large fiend , neutral evil
Armor Class 13 (Natural Armor) Hit Points (8d10 + 24) Speed 60 ft., fly 90 ft.
STR 18 (+4) DEX 15 (+2) CON 16 (+3) INT 10 (+0) WIS 13 (+1) CHA 15 (+2)
Damage Resistances Fire Senses Passive Perception 11 Languages Common and Infernal but can't speak Challenge 3 (700 XP) Proficiency Bonus +2
Confer Fire Resistance. The nightmare can grant resistance to fire damage to anyone riding it.
Illumination. The nightmare sheds bright light in a 10-foot radius and dim light for an additional 10 feet.
Actions Hooves. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: (2d8 + 4) bludgeoning damage plus (2d6) fire damage.
Ethereal Stride. The nightmare and up to three willing creatures within 5 feet of it magically enter the Ethereal Plane from the Material Plane, or vice versa.