This is by no means an exhaustive list, just some examples from faerie tales.
Artifacts
Magical Swords (limited to members of the embassy guardians)
Transformations
Epic Characteristics
The Ability to Devour Others Whole
Special Skills
Replaced Body Parts
Mystical Assistance
Compelled Service
Dangerous Appearance
Lost Ability
Time Limit
Perilous Behavior
Too Kind
Too Mean