El Diablo (5e Creature)
From D&D Wiki
Huge fiend, chaotic evil
Saving Throws Str +18, Con +16, Int +16, Cha +15
Innate Spellcasting. El Diablo's spellcasting ability is Charisma (spell save DC 20). El Diablo can innately cast the following spells, requiring no material components:
At will: Fireball (7th level), Fire Shield, Aganazzar's Scorcher
3/day each: Fear, Delayed Blast Fireball (8th level), Wall of Fire (8th level)
1/day each: Fire Storm, Meteor Swarm, Weird
Fire Absorption. If El Diablo is subjected to fire damage, he instead heals the damage he would have received.
MultiAttack. El Diablo makes two claw attacks or one claw attack and one burning touch attack.
Claw. Melee Weapon Attack: +15 to hit, reach 15 ft, one target. Hit: 24 (4d6+10) slashing damage.
Burning Touch. Melee Weapon Attack: +15 to hit, reach 15 ft, one target. Hit: 38 (8d6+10) fire damage.
Hellish Lightning (Recharge 5-6). El Diablo shoots forth red lightning in a 100-ft line that is 10 ft wide. Each creature in that line must make a DC 22 Dexterity saving throw, taking 40 (11d6) fire damage and 40 (11d6) lightning damage on a failed save, or half as much on a successful one.
The 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 regains spent legendary actions at the start of its turn.
Claw Attack. El Diablo makes a claw attack.
Cast A Spell (2 Actions). El Diablo casts a spell.
Bone Prison (3 Actions). El Diablo targets one creature within 60 ft of him and forces it to make a Strength saving throw DC 22. On a failed save the target is trapped in a cage of bones, their movement becomes zero, they have total cover, and can't attack. They can repeat the save at the end of their turns, freeing themselves of the cage on a success.
A very powerful and fearsome archfiend of the Abyss who claims to be the lord of fire and fear.