Allow druids to swap places with animated trees
Cause they're tree-huggers!
Druids have all sorts of issues, but the animated forest shouldn't be one of them. These tree-hugging hippies should be at one with nature et al, and it would make sense for them to have much easier progress through the animated forest. So let them swap places with animated trees! This wouldn't be unbalancing - it's just a flavour thing really.