Murky vs Zul'Jin
Murky can not lane against Zul'jin. He two shots Murky and his pufferfish at range. EVen if Murky kamaikazes on Zuljin he can self heal the little damage Murky would do. Switch lanes or backup behind the gates.
Once Murky gets Fish Tank the fight becomes more fair. If Zul'jin become 'unkillable' then Murky should bubble up and wait for that to expire. Unkillable lasts four seconds so Murky probably will not be able to finish him off but his team mates should.