How to Clear Infinite Tower 90F

This guide covers how to clear Infinite Tower 90F in Seven Knights Re:Birth. Includes best heroes, enemy info, equipment to use, type of immunity, and rewards in Endless Tower 90F.

Overview of Infinite Tower 90F

Enemy Info

Infinite Tower 90F
Yu Shin	Kris	Spike	Eileene	Jave

On Floor 90 of the Infinite Tower, you'll encounter four enemy units that apply Crowd Control effects, specifically Paralysis, Shock, Freeze, and Stun, which become increasingly difficult to manage as the battle progresses. Kris also contributes additional pressure by inflicting Death.

Clear Reward

Infinite Tower 90F Reward
10 Hero Summon Voucher

Infinite Tower 90F Recommended Heroes

Immunities

At Least One per Immunity
Feng Yan Lania Freeze Immunity	Evan Sieg Stun Immunity	Chloe Shock Immunity	Victoria Paralysis Immunity	Victoria Death Immunity

Select a hero with the appropriate Immunity to complement your lineup. Ideally, choose Heroes that contribute to damage output against enemy units that rely on Crowd Control.

Crowd Control

At Least One
Yu Shin	Spike	Eileene	Kagura
Jave

Crowd Control heroes are effective counters against enemies with status/debuff skills. This strategy provides more team flexibility and helps minimize damage taken.

Tips!	For CC team, Adding Yu Shin is highly recommended due to his Increased Effect Hit Rate for all allies and inflicts Paralysis/Effect Resist Reduction.

Versatile Supporters

At Least One
Biscuit	Lina	Elysia	Evan
Rachel	Yui	Lucy	Rin

Biscuit and Lina are highly versatile supporters who can be used on any floor of the Infinite Tower. Lina's Effect Resist Boost is especially useful against enemies with strong crowd control. If you don't have them, you can use Vanessa for Defense Debuffs, and Yui or Evan for healing and durability.

Damage Dealer (DPS)

At Least One
Teo	Klahan	Kyle

Choosing heroes with strong AoE DPS skills is always a solid choice. Klahan can easily clear Infinite Tower 90F, while Kyle and Teo are also reliable alternatives if you don't have Klahan.

Infinite Tower 90F Team Example

Immunity CC Team Physical Death

Immunity Team

Front Row	Front Row	Front Row	Front Row	Back Row
Yui Healer Burn Immunity	Evan Tank Stun Immunity	Chloe Shock Immunity Debuff Removal (Flex Slot)	Leo Death Immunity Victoria Paralysis Immunity (Flex Slot)	Klahan Teo Kyle Main DPS

At the start of the round, have Evan cast Barrier to enhance team survivability. With the lineup above, the primary status threats you'll face are Freeze and Paralysis. Use Chloe's Debuff Removal to clear inflictions; if that isn't sufficient, consider replacing Flex Slot with a reliable Debuff Removal Hero like Lucy.

Tips!	If the team above doesn’t work for you, try adjusting the lineup by incorporating different immunity-type heroes. Team performance will also vary depending on Hero enhancements and equipment quality.

Crowd Control Team

Front Row	Front Row	Front Row	Front Row	Back Row
Yui Healer Burn Immunity (Flex Slot)	Yu Shin Crowd Control	Kagura Crowd Control (Flex Slot)	Teo Sub-DPS (Flex Slot)	Klahan Kyle Main DPS

This strategy focuses on starting with a single CC and bursting down the enemy before they can use theirs. If Death infliction still wipes your team, consider adding a Death Immunity hero in the flex slot.

Tips!	If you have Elysia, place her in the flex slot. She provides Debuff Removal, Silence, and Buff Duration Reduction, which is a great counter against Kris' Immortality and Yu Shin's All Damage Immunity.

Physical Team

Front Row	Front Row	Front Row	Front Row	Back Row
Evan Tank	Yui Healer	Eileene Kagura Crowd Control	Jave Crowd Control Biscuit Ace Def Debuffer	Teo Main DPS

For Physical-focused teams, Teo or Klahan are recommended as primary DPS due to their high damage output. Eileene and Jave complement them by providing powerful damage buffs and applying Crowd Control effects to enemies.

Death Team

Front Row	Front Row	Front Row	Front Row	Back Row
Evan Rudy Platin Tank	Yui Alice Lina Healer	Eileene Kagura Yu Shin Crowd Control	Knox Inflict Death Death Chance Increase	Kris Inflict Death

If you have Kris, use a Death Team and prioritize survivability over damage. The Death debuff will automatically defeat enemies after 3 turns or once they reach 2 stacks, making endurance the key to victory.

Strategy & Tips

Crowd Control is Effective

Instead of reducing enemy healing, you can bring heroes with AoE Crowd Control to stop them from healing entirely. This strategy provides more team flexibility and helps minimize damage taken.

Use Protective Formation

Protective Formation is the recommended setup for Infinite Tower 90F. At Level 20, it boosts Back Row heroes' Attack by 26% and grants Front Row supports and healers a 6.5% Defense increase. Other formations can also work, but require more investment into your characters and gear.

Tips!	Make sure to enhance the formation level for increased back row and front row effect. The higher the Formation level, the better.

Use Skill Queue

Auto Skills offer convenience, but they don't always select the optimal skills in critical situations. It's best to use the Skill Queue to start with a buff, then monitor combat and manually activate skills as needed.

Tips!	Strategically, queue buffs first, such as 'Barrier', then use priority skills manually to gain the upper hand.

Enhance Your Hero

Enhance your heroes' skills, ultimate, and power-up to +5. Prioritizing tanks and healers to boost their effectiveness and utility. Skill & Ultimate Enhancement materials can be obtained from Story Event rewards, the Shop, and the Infinite Tower.

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