Excalibur is one of Warframe'sstarting characters that ... must complete "The War Within" quest and complete Mot, Void on the Star Chart. Excalibur Umbra must be crafted to complete "The Sacrifice ...

Warframe presents you with a vast array of weapons, companions, and a plethora of Warframes to embody. While you make your journey throughout the Star Chart ... for a while on Void Storm missions ...