### **Wave 1: Fiendish Beasts**
#### **Hellhound Pack (x4)**
**Medium Fiend, Lawful Evil**
- **AC:** 15 (natural armor)
- **HP:** 55 (7d10+14)
- **Speed:** 50 ft
- **Abilities:**
- **Hellfire Collar (Magic Item):** When a Hellhound is reduced to 0 HP, the collar explodes in a 10 ft radius, dealing 14 (4d6) fire damage (Dex DC 13 for half).
- **Fire Breath (Recharge 5-6):** 15 ft cone, 21 (6d6) fire damage (Dex DC 13).
#### **Barbed Devil**
**Medium Fiend, Lawful Evil**
- **AC:** 16 (natural armor)
- **HP:** 120 (14d8+42)
- **Abilities:**
- **Infernal Aura:** Enemies within 10 ft take 3 fire damage at the start of their turn.
- **Barbed Skin:** Melee attackers take 5 (1d10) piercing damage when hitting the devil.
- **Hurl Flame:** Ranged Spell Attack: +6 to hit, 17 (3d10) fire damage.
---
### **Wave 2: Mortal Champions**
#### **Human Fighter (Champion)**
- **AC:** 18 (Plate)
- **HP:** 90 (12d10+24)
- **Magic Item:** **Greatsword of the Infernal Knight** (+2 Weapon)
- **Infernal Strike:** Deals an extra 7 (2d6) fire damage.
- **Hellish Retribution:** When reduced to 0 HP, the sword releases a fiery explosion in a 15 ft radius, dealing 14 (4d6) fire damage (Dex DC 15 half).
#### **Half-Elf Rogue (Assassin)**
- **AC:** 16 (Studded Leather +1)
- **HP:** 80 (12d8+24)
- **Abilities:**
- **Infernal Dagger (Magic Item):** On a hit, forces a DC 15 Con save. On a failure, the target is poisoned for 1 minute.
- **Sneak Attack (1/Turn):** 6d6 bonus damage.
#### **Tiefling Warlock (Fiend Patron)**
- **AC:** 15 (Mage Armor)
- **HP:** 72 (12d8+24)
- **Abilities:**
- **Hellfire Rod:** Deals 14 (4d6) fire damage with Eldritch Blast.
- **Spells:**
- **Crown of Madness:** Forces enemies to attack each other. (DC 14 WIS save )
- **Fireball (3rd level):** 8d6 fire damage in a 20 ft radius (DC 15 DEX save).
#### **Dwarf Cleric (Life Domain)**
- **AC:** 20 (Shield of Radiance +1, Plate)
- **HP:** 84 (10d8+40)
- **Abilities:**
- **Bless (1/Day):** Adds 1d4 to attack rolls and saving throws for 1 minute.
- **Spirit Guardians (3rd level):** Radiant damage 3d8 per turn within 15 ft.
#### **Hellhound Pack (x1)**
**Medium Fiend, Lawful Evil**
- **AC:** 15 (natural armor)
- **HP:** 55 (7d10+14)
- **Speed:** 50 ft
- **Abilities:**
- **Hellfire Collar (Magic Item):** When a Hellhound is reduced to 0 HP, the collar explodes in a 10 ft radius, dealing 14 (4d6) fire damage (DEX DC 14 for half).
- **Fire Breath (Recharge 5-6):** 15 ft cone, 21 (6d6) fire damage (DEX DC 14).
---
### **Wave 3: Infernal Constructs**
#### **Infernal Golem (x4)**
**Large Construct, Lawful Evil**
- **AC:** 19 (Infernal Plating)
- **HP:** 170 (20d10+60)
- **Magic Items:** **Infernal Core** (empowers abilities)
- **Hellfire Beam (Recharge 5-6):** Fires a 60 ft line of hellfire. Targets must make a DC 16 Dexterity save, taking 35 (10d6) fire damage or half on a success.
- **Infernal Stomp:** All creatures within 10 ft take 21 (3d10+5) bludgeoning damage and are knocked prone (DC 16 Strength save).
- **Self-Destruct:** When a Infernal is reduced to 0 HP, it explodes in a 20 ft radius, dealing (6d6) fire damage (DEX DC 16 for half).
---
### **Wave 4: Devilish Reflection**
#### **Twisted Karissa**
**Medium Fiend, Lawful Evil**
- **AC:** 18 (Infernal Mantle of Shadows)
- **HP:** 140 (18d8+54)
- **Abilities:**
- **Corrupted Blade (Magic Item):** +9 to hit, deals 15 (2d10+4) slashing damage and 10 (3d6) necrotic damage.
- **Mirror of Pain:** Each time Karrisa or an ally takes damage, they must succeed on a DC 16 Wisdom save or take 10 (2d10) psychic damage.
- **Dark Eruption (Recharge 5-6):** A 20 ft radius eruption deals 30 (6d10) necrotic damage to all enemies (Con DC 16 for half).
#### **Infernal Golem (x2)**
**Large Construct, Lawful Evil**
- **AC:** 19 (Infernal Plating)
- **HP:** 170 (20d10+60)
- **Magic Items:** **Infernal Core** (empowers abilities)
- **Hellfire Beam (Recharge 5-6):** Fires a 60 ft line of hellfire. Targets must make a DC 16 Dexterity save, taking 35 (10d6) fire damage or half on a success.
- **Infernal Stomp:** All creatures within 10 ft take 21 (3d10+5) bludgeoning damage and are knocked prone (DC 16 Strength save).
- **Self-Destruct:** When a Infernal is reduced to 0 HP, it explodes in a 20 ft radius, dealing (6d6) fire damage (DEX DC 16 for half).
#### **Hellhound Pack (x2)**
**Medium Fiend, Lawful Evil**
- **AC:** 15 (natural armor)
- **HP:** 55 (7d10+14)
- **Speed:** 50 ft
- **Abilities:**
- **Hellfire Collar (Magic Item):** When a Hellhound is reduced to 0 HP, the collar explodes in a 10 ft radius, dealing 14 (4d6) fire damage (DEX DC 14 for half).
- **Fire Breath (Recharge 5-6):** 15 ft cone, 21 (6d6) fire damage (DEX DC 14).
---
### **Zorthan the Crimson Chains (Boss)**
**Large Fiend, Lawful Evil**
- **AC:** 19 (Infernal Chains)
- **HP:** 210 (20d10+80)
- **Abilities:**
- **Chains of Binding (Recharge 5-6):** Grapples all creatures within 30 ft (Str DC 18). Grappled creatures cannot cast spells.
- **Sapping Aura:** All creatures within 10 ft lose 1 spell slot or take 20 necrotic damage per turn.
- **Flaming Whirlwind:** Spins chains in a 15 ft radius, dealing 30 (8d6) fire damage and knocking creatures prone (Dex DC 16).
---
### **Asmodeus (Non-Combat Encounter)**
- **Abilities:**
- **Reality Warp:** Opens portals to any location.
- **Infernal Command:** Enforces silence or compliance within 30 ft (Wis DC 18).
- **Supreme Charisma:** Automatically charms creatures with CHA below 16 unless they succeed on a DC 20 Wisdom save.
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Would you like further mechanical expansions, or is there a particular stat block you'd like more depth in?