There's only one evolutionary line each with Wonder Guard, Pure Power, and Imposter, so shouldn't they be among the Pokémon that can't be inherited from? As it stands now, those abilities are banned outright, even on the Pokémon that normally get them, which is an understandable simplification for an ability like Speed Boost, but if Water Bubble is going to be banned differently, then they should be too. (Obviously, the other consistent choice is to just ban Water Bubble and only use donor bans where movepools are involved)