Desert Chest

[cathedralmaster]

Is there anyway to upgrade the desert chest to drop an Ultra-rare rather than just a rare (which just ends up getting mass sold as rares are nearly worthless now)?

All the other high level runs except Dachy are guranteed to drop at least one UR at the end.

[FunkySwerve]

Desrrt does drop a ur at the end, curtesy of dusty. You'll notice that all the other runs have bosses at the end, as well.
Funky

[magicpants11]

I always thought that desert was part of the dusty run...