Zhin is annoyingly good at surviving fights using Counter and Billow. But keep in mind that while using his abilities he isn't a threat but a DISTRACTION. Just live him be and focus on an other enemy while you waith for his ability to expire

If you Hyper Beam a Torvald off the map he won't be able to use his ult to get back

Don't fight Maeve if she doesn't have low health! Position yourself to the high ground on the back so that she'll need to use her movement abilities to get to you. If she does, group up with your tank or teammates and "spam" VBE to get assistance