Different beings have different ratings.

For Demons:

Danger Meter: Weak, Medium, Strong, Extremely Strong

Scare Meter: Not At All, Not Very, Very, Terrifying

Commonality:  Common, Uncommon, Rare, Very Rare, Unique

For Ghosts:

Danger Meter: Weak, Medium, Strong, Deadly

Scare Meter: Not At All, Not Very, Very, Terrifying

Type Of Haunting: Possession, House Haunt, Item/Artifact Protection

Commonality: Common, Uncommon, Rare, Very Rare, Extremely Lucky to See (ELS)

For Dragons:

Danger Meter: Painful, Deadly, Nigh Unstoppable, Unstoppable

Scare Meter: Cute, Scary, Terrifying, Cardiac Arrest Inducing

Type of Breath Weapon: Fire, Water, Ice, Poisonous Gas, Acid, Magma, Plasma, Other

Commonality: Rare, Extremely Rare, ELS, Unique