u/ConfoundedRedditor

One of my players in a planescape 5e game is playing a flying pixie. It's fine, I'm ok with flying. It hasn't been a problem before. They did however use it to solo a T-Rex in the Beastlands by flying out of range and fire bolting until it died. Is that just how flying works, or is there a way to balance that that I missed?

Side question, how do you run the beast transformations after killing a beast in the Beastlands?

I'm a DM running 5th edition planescape in terms of mechanics, but I'm keeping the lore from 2nd edition. (It's in my opinion better) The Lady of Pain is gone due to an Eldritch horror from the far realm the party doesn't know about yet. Therefore sigil is being bombed and is in ruins. What is the party to do now that the whole universe knows the Lady of Pain is gone?