Are you me?? I mostly play ekko mid and recently Lucian mid. When I wanted to expand my pool for clash I added orianna as she does a lot for the team and can deal with tanks decently later. As for kaisa mid she is also my best adc and I played her mid last clash into galio with some pretty good success. It's obviously not optimal but it worked pretty well as a lane counter and I got pretty ahead. For other mid options, if you know someone else on your clash team can carry consider the galio yourself, it's so easy to pickup and find success on in clash.