Try to bait Terminus off the point by getting somewhat close, keeping your void grip ready. Use it as soon as Terminus uses his shatterfall attack. It'll cancel the attack, putting it on cooldown while you retreat and your teammates melt him.
Sneaky Maeve been giving your team the slip? Give her a slow! Because of Her low health and dependence on movement She'll be a sitting duck in no time. Just make sure She has abilities on cooldown.