Talk:Excalibur (Warframe)/@comment-66.42.130.156-20150627153501/@comment-26355183-20150627181928

Excalibur has improved proficiency in the Tenno art of the blade, receiving +10% attack speed and +10% damage when dealing melee attacks (including via Exalted Blade) while wielding the following weapons: ◾Longswords, such as the Skana. ◾Dual swords, such as the Dual Skana. ◾Nikanas, such as the Dragon Nikana.[requires testing]

Found under "Abilities".