That's why you don't deal with them unless you really have to, and go for the enemy mage. Forcemaster is one of the most aggro mages in the game, but she plays very differently from all the mages except for the warlock and Malakai priest, and even then she's quite unique. Most zombies have pest or lumbering, so if you pack a cheetah speed they might find it difficult to catch you when they need to most.
As for the Druid, you need to move across the board to her zone as soon as you can, or she'll start hindering you with vine markers that elusive won't help you with. Alternatively, you can rely on Thoughtspore to move you around, but that means you need to be able to cope and recover well from the death of a Thoughtspore. That might be tricky, but I'm sure it's quite doable.