KeyMirror brings your rotation front and center. It takes the recommendations from Blizzard's built-in Assisted Combat (Assisted Highlight) and presents them as a clean heads-up display, so your next suggested ability is big, obvious, and easy to follow in the thick of combat instead of a subtle border tucked away on your action bars. It's made especially for players who leaned on WeakAuras and other aura addons to manage their rotations and have found the new base UI harder to read. If you've been squinting at the default highlight, KeyMirror gives you back the clear, glanceable visibility you're used to.