It also changes Mythra 's appearance when she equips the core. This is the costume Mythra wears in Super Smash Bros. Massive Melee Mythra is a DLC Aux Core made available for free with the 2.0.2 Update of Xenoblade Chronicles 2 and Torna ~ The Golden Country. Calamity316 1 year ago #1. Mythra's powers have a focus on light-element attacks. Since Pyra is another personality Mythra created, they can freely switch places. She is the Aegis, a Legendary Blade who can grant tremendous power to her Driver Rex, and his allies. Mythra (Japanese: ヒカリ, Hikari; English dub: /ˈmɪθrə/) is a main character in Xenoblade Chronicles 2. It boosts the Critical Hit Rate of the Blade by 25%. Out of nowhere, Nintendo and Monolith Soft added the Massive Melee Mythra outfit to the game. Ultimate as a Spirit. Idk if anyone else has found it or not but mythras smash ultimate costume in the base xenoblade chronicles 2 game can be found by talking to brobro at Argentum trade salvage deck. Rex is able to freely use this ability both in and out of battle upon starting Chapter 5. Massive melee mythra in original game; User Info: Calamity316. Unfortunately, it might not be immediately clear as to how players can obtain the outfit. User Info: chang3ling.