>>13308013terrakion has another stab and many dragones don't have one that is good (for example salamence or latios)
also, he actually hits stuff super effectively, which somewhat counteracts the fact that his main stab has an immunity
dragones only hit themselves SE - the only reason they are now so good with choice items is that they only have one resist, and hitting SE doesn't matter when you KO stuff neutrally
but an immunity will change all that, and make dragones useless - mark my words
well, some of them will survive - garchomp for example - but none will remain undamaged by the introduction of fairies
