We Used to Be Daedra Like You

All spells, shouts, and projectiles are preserved during fast-travel. The Slow Time shout allows for multiple projectiles to be fired and fast-traveled to before they arrive at a location. The Dremora at the Shrine of Mehrunes Dagon were calmed with illusion magic, allowing fast-travel from them, to the Lord Stone. They were sniped in the knees, as that is the meme in Skyrim.