DB+HB dragonite

It's still usuable for offense with DB. And it's 100 IV so that itself is pretty special. I have a 100 IV DT/HB that I'm considering powering it up.

transfer to teh professor

Professor needs to investigate it first

What Dragonites can you obtain that are better than it? DT/O & DT/H? That's a 33% chance of obtaining a better Nite w/ a 16.7% chance of obtaining SW/HB.

Put any 3200+ Dragonite into a gym with one or even more high-level Blisseys and it will do wonders.

it will be considered unusable when you have all the legendaries of all generations