Fairy types are absolutely adorable :3
Ribombee Crest: Pollen puff heals allies 66% instead of 50%, and 1.1x buff to special attack?
Comfey Crest: Signature move floral healing, heals 55%(On grass field 70%) can also heal status effects, Comfey's draining kiss has a 40% chance to infatuate the target.
Milotic Crest: Ability changes to water bubble, halves fire type move power and doubles the power of water type moves, Special defense and speed stat swap. (To be honest I think this one is a bit broken...)
Cryogonal Crest: Ability changes to Snow Warning, Special defense and special attack swap.