Stun'Damba is key here. If you can buff up the range of Snake Toss, fighting fire with fire can really hit Bomb King hard early-game - and late-game if he doesn't buy Resilience.
Believe it or not, if you're good at tracking, Jenos can get good poke damage on Drogoz if he's in the air. Strategize with your team to see if you can find a way to poke him out of the air and someone on the ground can finish him off.
Chronos. There is rarely a reason to get anything else for Jenos except Chronos if you're intending to heal with him. If you find yourself being hard-countered get Chronos II then buy another item to properly defend yourself.
Nullify, nullify, nullify. Bait Maeve into the open, then hit her with the good ol' Nullify beam. More often than not, her Nine Lives will still be on cooldown, and someone else is gonna be there to kill her.