Artery Gear - Ultimate Arena Red Boss Guide

This guide gives you information about the Ultimate Arena game mode and the Red Boss you will fight there.

Red Boss
Ultimate Arena
Skills
Phase 1Phase 2
Skill 1: Inflict damage to all enemy targets and advance own action bar by 15%.Skill 1: Inflict damage to all enemy targets. If this unit does not have a debuff, perform a follow up attack using Skill 1. This effect only triggers once per turn.
Skill 2: Inflict damage to all enemy targets and gain Attack Boost and Critical Chance Boost for 2 turns. (CD: 3 Turns)Skill 2: Inflict damage to all enemy targets and gain Attack Boost for 2 turns. Increase the damage of this skill by 50%. This additional damage is reduced by 10% for each debuff on this unit, to a minimum of 0%. (CD: 3 Turns)
Skill 3: Inflict damage to all enemy targets. This attack deals 50% more damage to Green Attribute units. (CD: 4 Turns)Skill 3: Inflict damage to all enemy targets and apply SPD Reduction for 2 turns to all enemies who have a lower speed than this unit. The Speed gained from this unit’s passive does not apply when determining which enemies have a lower speed than this unit. (CD: 4 Turns)
Passive:
  • Damage taken from Red and Green Attribute units is reduced by 25%. Damage received from a deflected attack is reduced by 30%.
  • Gain 30% Defense if the enemy team does not contain a Striker Type AG. The condition for this effect is checked at the start of each turn.
  • When this unit is attacked while it has 4 or more debuffs, it will cleanse 2 random debuffs from itself.
  • After a set number of turns, this unit’s Attack and Speed will increase. After a certain threshold is met, massively increase the damage of all of this unit’s skills. This effect resets every time the player’s team is replaced with a new one.
  • After losing 5 HP bars, this unit’s skills will change to the Phase 2 version.
  • This unit is unaffected by enemy skills and effects that deal damage based on the target’s maximum HP.
Passive:
  • Damage taken from Red and Green Attribute units is reduced by 25%. Damage received from a deflected attack is reduced by 30%.
  • Gain 30% Defense if the enemy team does not contain a Tactical Type AG. The condition for this effect is checked for at the start of each turn.
  • Advance own action bar by 20% when this unit is attacked while it has no debuffs.
  • After a set number of turns, this unit’s Attack and Speed will increase. After a certain threshold is met, massively increase the damage of all of this unit’s skills. This effect resets every time the player’s team is replaced with a new one.
  • This unit is unaffected by enemy skills and effects that deal damage based on the target’s maximum HP.
Team composition tips

Due to the number of units that you can bring to Ultimate Arena, it is difficult to gear everyone properly if you are still in the early or midgame. If this situation applies to you, then focus on building 1 to 2 solid teams for the boss and fill the rest of the slots with units that will increase your raid score multiplier.

Some general team building tips:

  • Each team, ideally, should have a Defense Breaker, an Attack buffer, a single target DPS, and a healer.
    • As you progress your account and obtain better gear, it is possible to switch out the healer for another utility support. Some options include an action bar manipulator or a debuffer.
  • Include an AG with the AG Type that will nullify the boss’ Defense buff passive.
    • For example, when fighting the Red Raid Boss, you will want to include a Striker Type AG for the team(s) that is fighting the boss in its 1st Phase (generally this is will be Team 1) and a Tactical Type AG for the team(s) that will be fighting the boss in its 2nd Phase (generally Team 2 and beyond).
Sample teams
Team 1
Morris
Healer
4 stars

Morris

Verbana
Assault
4 stars

Verbana

Corax
Assault
4 stars

Corax

Alice
Tactics
4 stars

Alice

Team 2
Komachi
Healer
3 stars

Komachi

Lila Decyrus
Assault
5 stars

Lila

Chihaya
Assault
4 stars

Chihaya

Quinn
Tactics
5 stars

Quinn

Team 3
Nio
Balanced
3 stars

Nio

Ginga
Assault
5 stars

Ginga

Maika
Healer
4 stars

Maika

Foxy
Tactics
3 stars

Foxy