GameTrek Logo
How to Unlock Serpent Strike Sword Skill | Echoes of Aincrad (SAO EoA)

How to Unlock Serpent Strike Sword Skill | Echoes of Aincrad (SAO EoA)

Last Updated: July 21, 2026 at 1:39 PM
Table of Contents

Serpent Strike Basic Information

Serpent Strike
Weapon TypeTwo Handed Axe icon
Two Handed Axe
SP Cost130Cooldown90
DescriptionExtend your blade forward and then unleash a wide-sweeping Crush Attack.Holding down the attack button charges up the ability,increasing the damage dealt the longer the charge is held.
•No Charge : 70(+200% of ATK)
•Charge Level 1 : 120 (+200% of ATK)
•Charge Level 2 : 170(+200% of ATK)

Here is the basic information for the Serpent Strike, showing its weapon type, SP Cost and Cooldown, description, and how to unlock it.

How to Unlock Serpent Strike Sword Skill

sword skill levelling.jpg

Sword Skills, although being named as such, can be for different weapon types such as the rapier, dagger, and so on. Except for the defaults, you can unlock Sword Skills by simply increasing your weapon proficiency.

Serpent Strike is unlocked by Two-Handed Axe Proficiency Lv. 10.

How to Increase Weapon Proficiency

Upon completion of the side quest, “Thrill of the Unknown,” you can increase your proficiency. You can then reallocate your Sword Skill points using your chest at the inn.

Related Articles

helpful guides.png