Leona and Banshee's
When Banshee's Veil and Leona's W (Eclipse) are both active, they're completely offset from each other. This looks really weird - ideally they'd be centered at the same point on her model, with Banshee's possibly being a little bigger so that they're visually distinct. Or perhaps something could be done to make it so that Eclipse looks different with Banshee's Veil active - the 'sun' part moving behind Banshee's Veil instead of behind an invisible moon.