I just thought of a good one. Tooth Faerie vs Santa Clause.
If this ever becomes a thing, we'll finally know what the tooth faerie does with all the teeth she collects. She could have spells with the "dental" subtype", like a curse incantation called "Cavity" that gives the rot condition. Also, she could summon dental molds to fight for her, and her weapons of choice would be the floss-whip and the tooth mace (basically a toothbrush weapon that moves rot conditions from the target to itself. Also she might have an incantation called "steal tooth" which makes a ranged attack with 2-5 chance of snatch and a 6+ chance of deducting 1 life from the target to cast a dental spell.
Since this is etheria, santa doesn't use elves. Elves are too proud to serve him. Instead the Etherian Santa Clause hires goblin builders to make toys. The toys are all conjurations. They have a variety of abilities and effects. Goblin builders can also repair toys. Also, if more toys get destroyed than the number of days until christmas eve, than Santa automatically loses. Toys target the zone when cast, but can be "picked up" to be attached to a creature.
What do you think?