With the Demolition legendary your Grumpy Bomb will stun Terminus even through he's Power Syphon, so that you can throw him Sticky Bomb to your heart's content. But you want to use your Grumpy to zone him out of the point, instead of aggressively
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
Every Champion that is on a killing streak will give their killer extra credits to spend. If you are on a streak SOMETIMES it may be worth jumping of the map before Lex can make you his retribution target and gain even more credits.
Talus can do a lot of damage in a 1 vs 1 but his health relatively low. Travel is groups of two or more if possible and necessary. You can force him to use his Rune of Travel early and cut unnecessary damage from you or your team by focusing him.