Dark Twili Midna

Dark Twili Midna (ダーク真のミドナ) is a enemy character who appears in Hyrule Warriors and an antagonist in Hyrule Warriors Legends. She is a Dark shadowy doppelgänger of Twili Midna created by out of control Dark Twilight Magic.

Hyrule Warriors
In Hyrule Warriors, Twili Midna has no role in the main story and only appears as a enemy in Adventure Mode. She uses the same moveset and drops the same Materials as Twili Midna (who drops the same Materials as Midna in Hyrule Warriors)

Hyrule Warriors Legends
In Hyrule Warriors Legends, Twili Midna appears as the main antagonist in Linkle's Tale: Her True Self. She a manifestation of the out-of-control Dark Twilight Magic that is trying to consume Hyrule, in the form of the Ruler of Twilight, Twili Midna. Princess Zelda leads a small band of Hyrulean Soldiers to halt the flow of Dark Magic when she and her forces are attack by Dark Twili Midna's Forces. Fortunately, Midna regains her Twili form via a Shadow Crystal found by Linkle and teams up with her to save Princess Zelda. They manage to defeat Dark Zant and Dark Twili Midna, however the Dark Twilight continues to flow, forcing Twili Midna to sacrifice the Shadow Crystal (causing her to revert back to her cursed imp form) in order to stop the flow of Dark Twilight Magic.