Murky vs Maiev
Maiev is not as nig of threat to Murky as he is to other heroes. Maiev has a low health pool so can forced to retreat from the lane by kamikazing him. Maiev's umbral bind can be be negated by Murky's bubble as well as his shadow form. All in all Maiev is no different than a hero like Valla. Certainly dangerous too Murky but doable.
Once Murky gets Fish Tank he becomes a threat to Maiev. It's better for Murky to attack Maiev one on one so that he does not get any bonuses from Fan of Knives.