Lets talk about rek sai
So it's my opinion that rek sai has far too much mobility for her kit. I like the idea of her leaving behind tunnels she created and being able to use them in case of a gank or surprise ambush. However I feel it is slightly ridiculous that she can make tunnels after taking damage from a champion and using it as a flash over the wall or just for some serious gap creating when fights go wrong. Now rek sai's tremor sense is a very cool concept however I think ONLY REK SAI should be able to see the champs movements in the fog of war not her team. This could add more teamwork factor by rek sai having to communicate things like someone is constantly over by her red buff so everyone should use caution near there. Next up on this list is her passive now I normally don't see rek sai jungle so I'm not sure how well it's sustain works there but in top lane her sustain is annoying as hell. This can be said about many top laners but her getting 1st blood when you aren't a win post 6 type of top laner can be very bad.