Hell Hound

Medium fiend, lawful evil

Armor Class: 15 (natural armor)
Hit Points: 45 (7d8+14)
Speed: 50 ft.

STR: 17 (+3)
DEX: 12 (+1)
CON: 14 (+2)
INT: 6 (−2)
WIS: 13 (+1)
CHA: 6 (−2)

Skills: Perception +5
Damage Immunities: fire
Senses: darkvision 60 ft., passive Perception 15
Languages: understands Infernal but can't speak it
Challenge: 3 (700 XP)
Proficiency Bonus: +2

Keen Hearing and Smell. The hound has advantage on Wisdom (Perception) checks that rely on hearing or smell.

Pack Tactics. The hound has advantage on an attack roll against a creature if at least one of the hound's allies is within 5 ft. of the creature and the ally isn't incapacitated.

Actions

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) piercing damage plus 7 (2d6) fire damage.

Fire Breath (Recharge 5-6). The hound exhales fire in a 15-foot cone. Each creature in that area must make a DC 12 Dexterity saving throw, taking 21 (6d6) fire damage on a failed save, or half as much damage on a successful one.

How many for your party

Copies of the hell hound (700 XP each) against a party of four characters of the same level. Build mixed fights in the encounter builder.

Number of Hell Hound for each difficulty, party of four
Party level	Easy	Medium	Hard	Deadly
Level 2	—	—	1	2–20
Level 3	—	1	—	2–20
Level 5	—	2	3	4–20
Level 6	2	—	3	4–20
Level 7	2	3	4	5–20
Level 8	2	3	4–5	6–20

In these lists

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Questions

What CR is the Hell Hound?

The Hell Hound is challenge 3, worth 700 XP, with a proficiency bonus of +2.

How many hit points does the Hell Hound have?

45 hit points (7d8+14), with AC 15 from natural armor.

How many should I use against four 2nd-level characters?

Against four level 2 characters, 1 is hard by the encounter XP budget.