Murky vs Valeera
Well Valeera does not really lane. What will typcially happen is Murky is laning sucessfully against a hero and then Valeera does a drive by Murky killing. If valeera did want to lane for some reason Murky can just retreat to his gate and kill minions there.
Fish Tank does not really help against Valeera even though she does physical damage. Once you get out of Valeera's stun Murky is dead. If Murky gets Smoke Bomb be aware that slime will still hit Valeera as well as pufferfish.