https://www.youtube.com/watch?v=401Pypmjd28
In that video at around 15:15, Landorus just got dracoed and died while misty terrain was up. I thought that misty terrain haves the power of dragon moves. How exactly does misty terrain work when it comes to dragon type moves anyway?
misty terrain does reduce dragon type moves power by half, but only to grounded targets. Check out it's PS description with /dt misty terrain. It says:
Misty Terrain 5 turns. Can't status,-Dragon power vs grounded.
Even in damage calculator if you put the situation along with misty terrain active selected, it'll show same damage. Hope I helped!