Garland was once a former knight of Cornelia, hence the card title, but became corrupt and stole her away to the Chaos Shrine
From my perspective, I get the feeling that while shes been introduced as a suggested protagonist, I actually think that the girl in the purple goth outfit could perhaps be our main villain
If you have Cloud on the field and a Buster Sword attached to Zack, you can fully recreate this scene from Final Fantasy 7
Throw this on some of the new, nasty creatures that punish them for blocking like Phyrexian Vindicator or, its scarier and much more blockable friend, "Phyrexian Vindicator with a Colossus Hammer"
While it doesnt untap on its own, support from cards like Voltaic Key or Unwinding Clock keeps it running smoothly
Taking that ability and putting it onto your Commander or any other creature is ridiculous