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How to Unlock Tri Slash Sword Skill | Echoes of Aincrad (SAO EoA)

How to Unlock Tri Slash Sword Skill | Echoes of Aincrad (SAO EoA)

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

Tri Slash Basic Information

Tri Slash
Weapon TypeRapier icon
Rapier
SP Cost50Cooldown40
DescriptionExecute three quick thrusting Sword Strikes dealing:
・70 (+200% of ATK) on the first strike
・70 (+200% of ATK) on the second strike
・70 (+200% of ATK) on the third strike

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

How to Unlock Tri Slash 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.

Tri Slash is unlocked by Rapier Proficiency Lv. 6.

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.

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