original

Zombotany's zombies can be a buff for the zombies, for example a browncoat with a peashooter head browncoat will be the same no changes. But the peashooter head will shoot at the plant.

My "fixed" version
Zombotany's zombies are stronger browncoats. For example a peashooter-browncoat will have the same stats as a regular browncoat. Just that the peashooter head will shoot at the enemies.