IMC: Druids, PC & NPC

Yes, there is a difference between the PC and NPC versions.

Player-Character Druids

Your typical player-character druids from the rulebooks. They're dedicated to Neutrality and tend to err on the side of Law in wider conflicts. Wood elves, in particular, gravitate to this class.

Non-Player Character Wild Druids

These are the not-so-Neutral ones, the militant tree-huggers with bad attitudes and a toothache. Wild Druids lean toward Chaos rather than Law. They basically hate humanity and its allies for their tendency to gather in large, ecology disrupting communities. These have access to all spells: magic, cleric, and druid. The tactics they use are specifically chosen to create fear and ruin morale such as those employed by guerilla fighters since time immemorial. Animal forms taken tend to be apex predators or raptors, subtlety is not the forté of this class. Woe to any PC wishing to establish a stronghold in what Wild Druids consider their territory.

In addition to a wide selection of spells, Wild  Druids are able to link together to cast higher level spells. This is additive, so three first level druids linking to a third level druid allows the latter to cast spells as a sixth level caster. Fortunately, Wild Druids rarely work together and even then only in small groups of two or three.