How does this hold up is the question

Fairy is probably the best type, while I think either ice or bug (leaning more towards ice) is the worst

Fairy only hits 3 types and its weak to poison, and I think if a type is weak to something, the damage of rocks and stuff like that is increased (tell me otherwise if I am wrong)

Stealth rock only deals more damage if the type is weak to rock
Plus Dragon used to be the dominant type, but fairy completely shut it down, and Dragon types are along some of the most powerful pokemon, so being able to hard counter them is pretty insane
Posion isnt used offensivly too much, along with steel, and fairys usually can learn a fire type move to deal with steel like mystical fire
Plus thoes two types can be easily countered by other team members

Twas only dominant because it was sucky, so they made all the Sudos besides 2 and a ton of Legendries Dragon, which is the only reason why they are good

And they were resistant to a lot of types, and its two weaknesses were ice (which sucks) and itself, plus the amount of coverage they have made them so dominant