Island of Terror Dungeon: How to Beat Kertaki

Island of Terror is a 2-Star Dimensional Circle dungeon where you must fight Kertaki in Throne and Liberty (TL). See an overview of Island of Terror, a complete walkthrough of Island of Terror, how to beat Kertaki, as well as the best rewards and drops upon completion!

Attention!	Some of the information here is based on the Korean version of the game with some adjustments to match the 2-Star dungeon release in Global. Stay tuned for the page to be updated on November 21st, thank you for your patience!

How to Beat Kertaki

Kertaki Overview

Kertaki
Type	Wildkin
Passive	Skillful Defense: All Endurance ▲

Kertaki Mechanics

Kertaki Mechanics
Meteor and Blue Flame Phase Geyser Vents Phase Rat Transformation Phase

Meteor and Blue Flame Phase

In the first phase of Kertaki. he will cast meteors that drop onto players from the sky. When these meteors land. they will cover the area with smoke, and blue flames will spread across the ground. As the meteors fall. lizards will spawn at the center of the stage. The tank must hold these enemies while the rest of the party moves closer to the geysers and dodges the falling meteors.

After the meteors land. blue flames will begin to appear. The party must stand on these blue flames to receive a debuff that clears the smoke around the geysers. Clearing the smoke is crucial for preparing for the second mechanic. Once the smoke is cleared, the party should focus on eliminating the lizards before resuming their attack on Kertaki.

Do note that if you are the party leader, consider marking the positions of the geysers to make it easier for party members to clear the smoke surrounding them.

Geyser Vents Phase

Once Kertaki reaches around 70% HP, he will begin casting a massive AoE attack that can instantly wipe out your team. During this phase, group up with your party members and run toward the charging geyser. This geyser will explode, lifting all players standing on it into the air, allowing you to dodge Kertaki's ground AoE attack.

This phase will occur again when Kertaki's HP drops to 50% or lower. Similar to the first geyser phase, you need to run to the geyser to lift off and dodge the AoE attack. However, this time, the attack will trigger again immediately. While airborne, you must quickly move toward the second geyser to avoid his follow up AoE attack.

Rat Transformation Phase

At 60% HP, Kertaki will transform everyone in your party into rats and create a ring that you must stay inside. During this phase, you need to dodge his attacks using the Burrow skill. Failing to dodge will result in being eaten, leading to instant death.

Keep in mind that you cannot leave the ring during this phase, as doing so will also result in death. Learning the timing of Kertaki's attacks is crucial for dodging effectively. Note that Kertaki targets the nearest rat, making it easier to predict which party member should Burrow next.

After the ring disappears, you can start picking up the flowers scattered around the area to revert to your original form.

Kertaki Attack Patterns

Kertaki follows and repeats this pattern the whole fight:

Fireball ▶ Melee Spin ▶ AoE Charge

Fireball Attack

Kertaki's Fireball attack can deal significant damage, especially to players with low defensive stats. After being hit by the third fireball, you will be stunned. The tank must absorb all the damage from this attack, and the stun should be immediately cleansed to prepare for Kertaki's next move.

Melee Spin Attack

Following the Fireball attack and a stun, Kertaki will execute a powerful spinning melee attack that damages all nearby party members. This attack can be effectively mitigated by blocking, which significantly reduces its damage.

AoE Charge Attack

Kertaki will then release a devastating AoE Charge attack that targets everyone in the area. The only way to avoid this attack is by timing your dodge roll perfectly to evade the damage.

Island of Terror Best Team and Roles

Role	Explanation
Greatsword / Sword and Shield Tank	Weapon Combination: This weapon combo provides an excellent tank build with sufficient damage and crowd control to support the party through the dungeon and in the fight against Kertaki. Dungeon Role: The tank is responsible for drawing enemy aggro and grouping them up for the DPS to eliminate efficiently as the party progresses deeper into the dungeon. Kertaki Role: During the fight with Kertaki, the tank must stay close with the boss and absorb the Fireballs directed at the party.
Dagger / Crossbow DPS	Weapon Combination: This weapon combo excels as a DPS build, offering both powerful AoE and single-target damage potential at close range. Dungeon Role: The DPS is responsible for clearing mobs efficiently and dealing high single-target damage to mini-bosses as the party progresses deeper into the dungeon. Kertaki Role: This build features the highest single-target damage skills, which can significantly shorten the fight against Kertaki. Its mobility also makes it easier to handle the boss mechanics effectively.
Longbow / Wand Healer	Weapon Combination: This weapon combo is currently the top healer build, offering consistent AoE healing, burst healing, and the ability to cleanse enemy crowd control effects, significantly enhancing the party's survivability. Dungeon Role: The healer is responsible for keeping the party healthy at all times, ensuring sustained survivability throughout the dungeon. Kertaki Role: During the fight with Kertaki, the healer's primary focus is to keep the tank alive, as the tank will absorb the majority of Kertaki's damage. Additionally, the healer provides support to the party during the Meteor and Blue Flame Phase, helping and clearing the lizards to keep everyone alive.

Island of Terror Walkthrough

	Island of Terror Sequences
1	Activate the Reptilian Brazier Jump down from the cliff and ask your tank to pull the enemies on the right side near the stairs. From there, the rest of the team will activate the Reptilian Brazier and proceed towards the gate ahead, where you will fight the Infuriated Reptilian Butcher. Note that you can skip most of the enemies in the center of the first room by heading straight for the brazier. ┗ Infuriated Reptilian Butcher
2	Activate the Bonfire In the second room, the tank will take the right path again, pulling all the enemies' aggro and kiting them while the rest of the party interacts with the bonfires inside. Once the bonfire interaction is complete, the party will head straight toward the gate. After your party finishes the objective, the tank will reset and take the left path to regroup with everyone. Here, you will fight the Infuriated Reptilian Executioner. ┗ Infuriated Reptilian Executioner
3	Use the Geyser to Fly Proceed to the next room and stand on the geyser to glide further into the dungeon. You will enter another large room where the tank will need to take aggro from the enemies as the party crosses the room toward the Infuriated Reptilian Gladiator. ┗ Infuriated Reptilian Gladiator

Infuriated Reptilian Butcher

The Infuriated Reptilian Butcher will occasionally become invisible, making it impossible to attack. During this time, the tank must maintain aggro while the rest of the team steps aside to interact with the Luminescent Coral to make the miniboss visible again.

Infuriated Reptilian Executioner

This miniboss is straightforward. Simply jump over its fire attacks to avoid taking damage. Be extremely careful, as standing in the fire can result in massive damage.

Infuriated Reptilian Gladiator

Throughout the fight, as you deal damage to the miniboss, a red marker will indicate that the boss is preparing to target you with its charge attack. Position yourself near a pillar to destroy it, which will reduce the damage from the upcoming large AoE attack. Destroying the pillar will also stun the boss for a few seconds, giving you a brief window to burst it down.

Keep in mind that the Infuriated Reptilian Gladiator will perform this charge attack twice. The targeted player will be bound when the boss uses this move for the second time. This is where the Longbow becomes crucial, as it can cleanse the Bind with Purifying Touch.

Island of Terror Overview

Required Level	Lv. 50
Type	2-Star Dimensional Circle
Contract Token	300
Min. Combat Power	2500
Description
Toublek, who was once an elven wizard, performed heinous magical experiments to return to his original form. In the end, he obtained the power he sought by engraving powerful magic onto his own body. However, the power created from such senseless slaughter eventaully ate away at Toublek's sanity. Toublek forgot his original goal of becoming an elf once again, and became the merciless tyrant, Kertaki, who sought nothing but even greater power.

Island of Terror Best Rewards and All Drops

Phantom Wolf Tunic

Armor	Stats
Phantom Wolf Tunic	Type: Chest Armor Set: Ghost Wolf Set Melee Def: 162 Ranged Def: 178 ・Strength 2 ・Weaken Chance 21 ・Magic Evasion 80

This versatile all-rounder armor performs exceptionally well in both PvP and PvE. It offers a balance of strength and weaken chance, which are two essential stats for DPS builds. Additionally, its excellent set effect can further boost your overall damage output.

Shock Commander Plate Armor

Armor	Stats
Shock Commander Plate Armor	Type: Chest Armor Set: Chief Commander Set Melee Def: 170 Ranged Def: 204 ・Strength 4 ・Damage Reduction 4

Thanks to its massive strength boost, this armor is among the best available in the game for DPS players. It is an excellent choice to enhance survivability due to the max health and damage reduction it provides.

All Drops

Armor

All Armor Drops
Ascended Guardian Raiment	Phantom Wolf Tunic	Plate of the Field General	Shadow Harvester Tunic
Shock Commander Plate Armor	Swirling Essence Robe	Deadeye's Cloak	Handguards of the Resistance

Accessories

All Accessory Drops
Belt of Combat Prowess

Items

All Item Drops
Precious Polished Crystal	Precious Stalon Ore	Precious Emeret Ore	Precious Rubrix Ore
Precious Marind Ore	Precious Parchment	Precious Omnipotence Parchment	Lizard Scale
Fermented Rotein

Other

All Other Rewards
Steel Fist Dentwerp	Abyssal Contract Token Points (x500)	Training Dew: 10,000 Points

Throne and Liberty (TL) Related Guides

All Co-op Dungeons: Dimensional Circles

Dimensional Circle Coop Dungeons

Specter's Abyss

Roaring Temple

Cave of Desperation

1-Star Dimensional Circle Coop Dungeons

Death's Abyss	Cursed Wasteland	Temple of Slaughter
Butcher's Canyon	Tyrant's Isle	Cave of Destruction

2-Star Dimensional Circle Coop Dungeons

Island of Terror	Voidwastes	Valley of Slaughter
Carmine Rage Island	Torture Chamber of Screams	-

Event Coop Dungeons

Haunted Labyrinth