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Adventure License

Dek'ril & Mek'ril — Outerplane Adventure License Guide

By ShiraenUpdated 2025-11-29
Strategy Guide

Dek'Ril & Mek'Ril Adventure License features the same skills as Special Request Stage 12. This sibling duo encounter can be consistently cleared in a single attempt with the right team composition. The strategy has been verified up to stage 9.

Dek'Ril

Dek'Ril

EarthEarthMageMageLv.100
Immunities
Chiron

Chiron

Attacks an enemy.
Heals an ally after attacking. Mek'Ril takes priority for the healing effect.

After attacking, increases damage dealt of all attacks by 7%.

Atlas

Atlas

Attacks all enemies, and has a 100% chance to inflict Poisoned on the target for 2 turn(s).
After attacking, grants a Barrier to all allies for 2 turn(s).

Hercules

Hercules

Attacks with Mek'Ril dealing lethal damage to all enemies.

Can only be used when Mek'Ril is alive.

Survival Instinct

Survival Instinct

(Passive Effect) Damage dealt increases if the attack target is Poisoned, or if Dek'Ril has a Buff.
When an enemy uses an AoE skill excluding Skill Chains, all allies' Defense increases for 2 turns.

WG damage taken from non-FireFire enemies is reduced by 50%, and damage dealt increases while damage taken decreases.
Damage dealt to FireFire enemies decreases, and damage taken increases.
(Trigger Effect) After an enemy acts, if the target is Poisoned, restores 1 WG and immediately counterattacks with Atlas.

Enraged

Enraged

Becomes Enraged when Health drops to 70% of Max Health or lower. Increases Attack and Speed by 15%. This effect lasts until the caster is inflicted with Break.

Enraged: Grants an irremovable effect to the caster that increases Attack, reduces damage taken for 5 turns and recovers Weakness Gauge by 30%. Enraged lasts for 4 turns.

Actaeon: Used when Enraged ends.
Deals a large amount of damage to a single enemy and heals all allies by 30%. Inflicts Unhealable on all enemies, and increases damage taken. These effects cannot be removed.

If Enraged within 2 turns, grants 80 Chain Points.

Mek'Ril

Mek'Ril

EarthEarthMageMageLv.100
Immunities
Titius

Titius

Increases Dek'Ril's Attack for 2 turn(s), and grants Marked to self for 1 turn(s).

Protecting Partner

Protecting Partner

(Passive Effect)
Increases Defense for 2 turn(s) at the start of battle.

Greatly reduces all allies' damage taken while the caster is alive. Damage Taken Reduction is removed upon caster's death, but grants Invulnerability and Increased Attack to Dek'Ril for 1 turn(s).

Survival Instinct

Survival Instinct

(Passive Effect)
At the start of a turn, if the caster is currently inflicted with Burned, becomes Unhealable for 2 turn(s).

Increases damage dealt to non-FireFire enemies and reduces damage taken from them.
Reduces damage dealt to FireFire enemies and increases damage taken from them.


Tactical Tips

  • If you use AoE skills that aren't chain skills, boss gains an .
  • If a character is afflicted with , the boss will counterattack just after he played.
  • Main boss (right side) is the only one attacking. The left boss constantly buffs .
  • If the left boss is killed, main boss gains and .
  • Characters that can inflict or are highly recommended.
  • Focus on single-target DPS to avoid triggering .

Recommended Characters

Aer
Fire
Striker
Kanon
Fire
Striker
Bryn
Fire
Mage
Bell Cranel
Fire
Mage

Aer, Kanon, Bryn, Bell Cranel

FireFire DPS options.

Valentine
Fire
Ranger
Christina
Fire
Defender
Eternal
Fire
Mage
Holy Night's Blessing Dianne
Fire
Ranger
Mero
Fire
Ranger

Valentine, Christina, Eternal, Holy Night's Blessing Dianne, Mero

FireFire supports that can help the team.

Tio
Fire
Healer
Astei
Fire
Healer
Liselotte
Fire
Healer

Tio, Astei, Liselotte

FireFire healer to keep the team alive.


Suggested Teams

Recommended TeamRecommended Team

Typically cleared in 1 attempt. Verified up to stage 9.