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Season 9 Tower of Trials for Seven Knights Re:Birth. The guide is for clearing the 18th Floor (Dellons). It includes tips, enemy info, and the best team for obtaining all 6 medals.
Season 9 Tower of Trial 18th Floor: Dellons
Enemy Info
| Period | Until 21:00 (UTC+0), March 18, 2026 |
| Floor | 18F |
| Enemy Formation |  |
| Speed | 200 |
| Turn Limit | 200 Turns |
| Features | - All Damage Nullification (10 times/30 times) - Inflicts Silence - Triggers continuous activation when an enemy is defeated with a skill. - Increases Physical Attack when using a skill. |
Additional Rules List
| Medals | Additional Rule/Details |
| -1 | [Ally] Silence Immunity [Always Active] Blocks the Silence effect. |
| -1 | [Ally] Inflicts Bleed on Basic Attack [50% Chance] [Lasts 2 Turns] [Always Active] 50% chance to inflict Bleed on Basic Attack. |
| +1 | [Enemy] Weakness Hit Chance Boost [Always Active] Increases Weakness Hit Chance by 30%. |
| +1 | [Enemy] Adds Execution effect to [Dellons]'s Skill 1 [Always Active] Execution effect is added to [Reaper's Advent]. |
| +1 | [Enemy] Increases the number of Damage Nullification hits for [Dellons]'s Skill 2 [Always Active] The number of Damage Nullification hits for [[Deathly Slice]] increases to 40. |
Team Composition & Strategy Tips
- - You should definitely include Silence Immunity
- Cleo, who can also inflict Poison, is recommended - - Remove the Damage Nullification as quickly as possible
- Focus on Bai Jiao and Cleo - - Prioritize HP Heal when HP is low
- Lina is recommended - - Once the nullification is gone, attack with Pascal
Bring Hero with Silence Immunity
| Silence Immunity Heroes | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
 Jin |  Cleo | ||||||||||
Dellons inflicts Silence, so be sure to include a Hero with Silence Immunity. Cleo, who can also inflict Poison, is highly recommended, but if you've only raised Jin, he will work fine as well.
Remove Damage Nullification Quickly
When Dellons uses his Skill 2, he gains 40 hits of Damage Nullification, including the additional rule. Focus on Bai Jiao, who can inflict Bleed and Poison, and Cleo, who can inflict Poison, to remove the nullification as quickly as possible.
Prioritize HP Heal When HP is Low
Dellons has an Execution effect from his continuous activation effect and the additional rules. To prevent the Execution or Continuous Activation, it's better to prioritize Lina's HP Heal when your HP gets low.
Attack with Pascal Once the Nullification is Gone
Once the Damage Nullification is removed, boost your damage with buffs/debuffs and attack with your Back Row attacker. Either Physical or Magic is fine, but to deal as much damage as possible before the nullification is reapplied, a heavy-hitter like Pascal is recommended.
Best Team & Pets
Basic Party Example
Biscuit
Lina
Bai Jiao
PascalThis is a basic party example where you reduce the Damage Nullification count with Bai Jiao and Cleo, apply buffs/debuffs with Biscuit and Lina, and then attack with Pascal. Cleo and Bai Jiao don't need damage output, so equipping them with Spellweaver gear that increases Effect Probability is recommended.
Roles and Recommended Equipment here
Recommended Pets
| Recommended | Alternative (Legendary) | Alternative (Rare) |
|---|---|---|
 Windy |  Yeonji |  Note |
The opponent is a single boss, so the most recommended pet is Windy. Since the party is focused on Magic heroes, if you don't have or haven't raised Windy, Yeonji is recommended.
Party Example for 6 Medals
The above is a party example for aiming for 6 medals. If you aim for fewer medals, you won't need Silence Immunity, which gives you more flexibility to add more attackers or support heroes.
Tower of Trial Season 9 Related Articles
| Tower of Trials Season 9 Floors | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
 20F | 18F | 16F | 14F | ||||||||
| 12F | 10F | 8F | 6F | ||||||||
| 4F | 2F | Odd Floors | | ||||||||
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