Cu Chulainn (Alter) is a survival-oriented Berserker. The most notable thing about Cu Alter is his two-hits Evade skill, Protection from Arrows. It does not have an expiry time; as such, these Evasions will never be wasted. His first skill, which reduces opponents’ attack and critical rate, also helps his allies, particularly when he is paired with a Taunter. However, even with his fully defensive skillset, Cu Alter is still able to deal heavy amounts of damage, boasting the highest attack stat among all Berserkers, and aided with his Noble Phantasm’s attack buff.
Still, Cu Alter is not without his own weaknesses. Being a Berserker, he has a rather hard time filling his NP gauge. Considering that his main attack buff is built-in to his NP, this means that Cu Alter cannot perform his powerful NP Brave chain as often nor as early compared to competitors such as Kintoki. This may be a problem in faster-paced battles, but fortunately for him, most of the time his higher durability is more than enough to make up for it. Additionally, Berserkers’ low star weight means that he cannot make use of the critical damage mechanism, which is somewhat of a weakness as it is really popular later on in the game.
Pros
Extremely high survival
High damage even without offensive skills
Cons
Slow NP charging
No critical function
Strategies & Tips
Cu’s Evade should be used as soon as there is at least a medium-sized threat, in order to make the most of his cooldown. When Evade is not on, the first skill should be used, potentially stacked with his Noble Phantasm’s defense up should the situation be threatening enough. Otherwise, his Noble Phantasm should be used to create Brave chains with at least one other Buster card. His Battle Continuation skill should be used as needed.
Noble Phantasm
Curruid Coinchenn is a Buster-type single target Noble Phantasm, possessing built-in attack and defense buffs. These buffs are applied before the attack proper, meaning that the NP always benefits from the attack buff. As Cu’s only means of damage increase, his Noble Phantasm is best used to perform a Brave chain.
Zhuge’s NP charging skills are especially important to charge Cu Alter’s NP gauge. Additionally, Zhuge Liang’s defense buff also stacks with Cu’s attack debuff skill and his NP’s defense up.
As with all Berserkers, Cu Alter benefits from the existence of Taunters. However, as his base survival is much higher than his competitors, Mash is a good option for Cu Alter even with her Taunt being only one turn.
Nightingale’s heal is always a welcome addition for Cu Alter, but the main asset she brings to the table is her Buster buff, which lasts for three turns. It allows Cu to deal much higher amounts of damage for its duration, made even more significant since it is multiplied with his attack buff.
Buster Performance With a 4-Buster cards deck, these Craft Essences are no-brainer for Cu Alter, as they allow him to deal much higher damage on his normal command cards. It is also important to note that the Buster buff is multiplied with Curruid Coinchen’s attack buff.
Invulnerability These Craft Essences add to Cu Alter’s already impressive survival, allowing him to live for a decent amount of turns even in the most fast paced of battles.
When equipped on Cu Chulainn (Alter), Increase own NP damage by 30%, and Revive with 20% HP when defeated (1 time).
Stats
Lvl
HP
ATK
Base
1,790
1,979
Lv90
12,210
12,805
Lv100
13,377
14,017
Hidden Stats
NP Charge (ATK)
0.69%
NP Charge (DEF)
5%
Star Weight
9
Star Rate
5.1%
Death Resist
52%
Alignment
Lawful, Good
Attribute
Earth
Traits
Servant, Humanoid, Divine, Weak to Enuma Elish, Earth or Sky, Brynhildr's Beloved
Noble Phantasm
Curruid Coinchenn (Rank A)
Deals damage to one enemy. [Overcharge]Increases own Attack (1 turn) Increases own Defense (1 turn) [This Effect Activates First.]
Rank
A
Classification
Anti-Personnel
Type
Buster
Hit-Count
12
Lvl
Damage +
Charge
Attack +
Defense +
1
600%
100%
30%
30%
2
800%
200%
40%
40%
3
900%
300%
50%
50%
4
950%
400%
60%
60%
5
1000%
500%
70%
70%
Skills
Upgrade Priority
Madness of the Spirits A
Applies attack and critical debuffs on all opponents. At 20% and 50% respectively when maxed, this skill is particularly useful against more powerful bosses, whose criticals are a serious threat. On cooldown-reducing skill levels, Protection from Arrows takes precedence; however, Madness of the Spirits benefit more percentage-wise.
Protection from Arrows C
Cu’s primary defensive skill, applies a 2-hit Evasion and a defense buff on himself. This skill’s cooldown should be prioritized over all his other skills, although Madness of the Spirits gain more benefit in terms of percentage scaling.
Battle Continuation A
This skill acts as Cu’s last resort skill. As it is most likely only used once per battle, this skill should be leveled last.
Madness of the Spirits A
Available from the start Decrease all enemies' Attack and Critical Chance for 3 turns.
Lvl
Attack -
Critical Chance -
Cooldown
1
10%
30%
8
2
11%
32%
8
3
12%
34%
8
4
13%
36%
8
5
14%
38%
8
6
15%
40%
7
7
16%
42%
7
8
17%
44%
7
9
18%
46%
7
10
20%
50%
6
Protection from Arrows C
Unlocks after 1st Ascension Grants self evasion for 2 hits. Increases own defense for 3 turns.
Lvl
Defense +
Cooldown
1
7%
7
2
7.7%
7
3
8.4%
7
4
9.1%
7
5
9.8%
7
6
10.5%
6
7
11.2%
6
8
11.9%
6
9
12.6%
6
10
14%
5
Battle Continuation A
Unlocks after 3rd Ascension Grants self guts status for 5 turns.
Lvl
Revives with
Cooldown
1
1000 HP
9
2
1150 HP
9
3
1300 HP
9
4
1450 HP
9
5
1600 HP
9
6
1750 HP
8
7
1900 HP
8
8
2050 HP
8
9
2200 HP
8
10
2500 HP
7
Class Skills
Mad Enhancement C Increases damage of unit's Buster cards by 6%
Divinity C Increases own damage by 150.
Command Cards
Card
Quick
Arts
Buster
Extra
Hit-Count
4
3
3
5
Cu’s QABBB deck allows him to deal large amounts of damage constantly, and makes for easier Buster Brave Chains when combined with his Noble Phantasm. While it does make gaining NP charge more difficult, due to his high survival it is not a significant liability when he is paired with a decent support.