The Roaring Knight is one of the toughest secret bosses in Deltarune Chapter 3, appearing right after the Teena fight with no warning. This battle is brutal—without the right strategy, gear, and reflexes, you’ll be wiped out in seconds. But don’t worry. With the right preparation, even this monstrous foe can be taken down. Here’s everything you need to know to beat the Roaring Knight and claim your rewards.
First things first—this isn’t a fight you can stumble through. The Roaring Knight hits hard, fast, and often with attacks that can one-shot your party if you’re unprepared. The key to survival? The Shadow Mantle, a special armor that drastically reduces incoming damage. Without it, winning is nearly impossible.
The Knight cycles through five deadly attacks, each with escalating difficulty:
- Ice Crystal Barrage – A rapid spread of crystals that reverse direction before exploding. Dodging diagonally between the gaps is your best bet.
- Gaster Sword Blasters – A near-instant kill move if you mistime your dodge. React fast or reset.
- Lemonbread Slash – A lightning-fast slash that deals massive damage. Block if possible, or heal immediately after.
- Swords’ Dance – Almost undodgeable. Tank the hit and rely on healing.
- Basic Slash – The easiest to avoid. Use this breather to heal or buff your team.
Your goal isn’t to deplete the Knight’s entire health bar—just deal 25% damage to trigger the fight’s end.
Essential Gear for the Fight
Before facing the Knight, optimize your team’s equipment:
- Susie: Equip the Shadow Mantle, Jevilstail, and Toxic Axe. She’s your frontline tank and damage dealer.
- Kris: Use the Saber10, Spikeband, and Twin Ribbon for balanced offense and defense.
- Ralsei: Focus on support with the Dealmaker, Flex Scarf, and Twin Ribbon. His healing is crucial.
Without the Shadow Mantle, Susie will fall quickly, so don’t skip the grind to get it.
How to Get the Shadow Mantle
The Shadow Mantle isn’t handed to you—it’s locked behind a series of tough challenges:
- Earn S Ranks in Both TV Boards – Complete all objectives, including mini-games and photo collections.
- Complete the Backstage Mini-Game – Level up by defeating enemies, chop trees, and grab the Ice Key.
- Unlock the Temple – Use the Ice Key to enter a dark zone, defeat enemies, and claim the White Cloak.
- Find the Shelter Key – Progress through the temple to unlock the final mini-game.
- Defeat the Shadow Mantle Mini-Boss – Win this fight to earn the Shadow Mantle.
Yes, it’s a grind—but without it, the Roaring Knight will crush you.
Battle Strategy: Surviving the Knight’s Onslaught
Once you’re geared up, here’s how to handle the fight:
- Prioritize Healing: Ralsei should focus on keeping everyone alive, especially after heavy attacks like Swords’ Dance.
- Use Rude Buster Wisely: Susie’s strongest attack deals extra damage if timed right. Save TP for it.
- Memorize Attack Patterns: The Knight’s moves follow a set order. Learn the tells to dodge better.
- Exploit Weaknesses: The Knight takes more damage from Susie and Ralsei. Kris should play defensively unless others are down.
If you fail, reload your save and try again. This fight is about persistence as much as skill.
Rewards for Beating the Roaring Knight
Victory grants two key items:
- Shadow Crystal – A mysterious item with potential future significance.
- Black Shard – A powerful weapon for Kris, dealing bonus damage to dark-type enemies.
These rewards are worth the struggle, especially if you plan to tackle future chapters.
