If Magician steals Vindicta ult and is able to get an extra charge of assassinate via extra charge, rapid recharge, or refresher, after Magician fires the first shot they can retain assassinate (and more so let it recharge) so long as they dont fire the last shot. Note the missing "Ult...
One of the more minor bugs as the equipment tab hasn't been implemented yet, but hovering over Mirage's weapon in the buy menu shows a placeholder image with "GUN IMAGES GO HERE" rather than his gun.