Excalibur Prime is the epitome of mobility and offense, and features the same abilities as Excalibur, but has unique mod polarities installed allowing for greater customization.

In game Description
Excalibur Prime is the primed variant of the Excalibur Warframe featuring more powerful stats: possessing higher armor, as well as an additional Madurai Pol and a Madurai Pol Aura SLOT, rather than a slot without a polarity.

Excalibur Prime is a Founders-exclusive Warframe.