Tips and Tricks
Try to have one party member as the Statue of Liberty. Her Anthem ability is particularly handy, as it allows you to heal up every few turns.
Sneak up on enemies where you can, as you'll deal a little damage to each Grubbin in the group before the battle starts.
If there's a Grubbin Shaman in the group, take him out first, otherwise he'll heal his allies every turn and battles can go on longer than they need to.
In the late stages, the Vampire costume is well worth seeking out, as it proves particularly handy during the final battle.