Today I noticed that a few cards in Wild also work exceptionally well with the bees. The cards are probably still bad and not worth using, and this isn't really a great synergy to speak of, but nobody brought it up so far, and I think it's worth mentioning that the new card brings them as close to playable as they can probably get.
Knight of the Wild gets his cost reduced whenever a beast is summoned, wich means that BEEEES!!! alone will reduce his cost by 4. And Volcanic Lumberer and Volcanic Drake can get their cost temporarily reduced by 5, if all the bees should kill a 4 health minion. Considering that the Drake would get his cost reduced to 1, it would make for a rather hefty tempo swing. Of course, Corridor Creeper would also greatly benefit from the bees.
Again, nothing huge, but I think it's kinda interesting that Bees also has a big tempo potential with some forgotten cards. Probably not enough to give Druid a new deck to look forward to, but perhaps something that somehow comes together in the future.
I don't know whether the Overkill interactions will work as people speculate. Would seem to me like a pretty big oversight if a surviving Linecracker could end the game instantly. I mean, they nerfed Reckless Experimenter for pretty much the same reason.
But even if not, the card can still be used in different ways, and it's up to the player to get the most out of it. At worst, it is a Shadow Bolt, a decent removal spell in a class that doesn't have many alternatives. I really like the design.
The only thing that bothers me is that it doesn't work with spell damage, like Imp-losion does. Otherwise, it would say "summon 4 bees" instead of "summon four bees".