Dead bodies and bugs

All champions have death animations and some completely disappear , but the ones who doesn't stay on the ground and then they vanish. At least make it a little more presentable so they go up the sky then respawn or make them go into the ground ( kind of like the minions ) and respawn like normal . And for god sake fix the bug when you go out of fog of war you cant see the body and when you come in range of the body it bounces . And i know this is a small one but when you press your mastery Ctrl+6 you move your camera of the champion and you come back the mastery is gone there is only glitter left. That's it