I really like Renekton's kit
It's a very simple yet effective kit with some strategy in it thanks to his Fury. He has an AoE nuke that heals him, a point and click stun, a dash that if you hit something you get another dash and a ult that gives him more health and AoE DoT. If you only have 50 fury do you want the extra damage and healing from the Q or the longer stun duration and damage from his W or you could be crazy and get the armor shred from his E. You could also save up to 100 Fury and get the bonus effects from two abilities in a combo instead of just one. It has nothing super fancy, flashy or complex in it but it has clear purpose and strengths that it does really well. I hope we can get more kits that are simple but has some strategy in them. None of this "this ability gets bonus percent health true damage damage but only if the target is slowed by 30% but only after three hits and if your behind the target and you are the last one alive on your team."