I had this idea for a long time..We see Death eaters in HP movies to have the ability to fly around like a dark cloud!! I always wanted to experience this in Potterworld!! It could be a mobility spell with a 60s or lower cooldown that gives you the ability to fly around with a smoke trail for like 10 seconds and then fall with no falling damage. I believe this spell could be approachable from a future special Graduate Quest as a reward. The smoke trail could be black like in the movies or could be a custom color like the wand effects! Also i figured out a name for the spell--> Lux Volans wich means Light Flying in Latin.. U can think other names tho! Tell me your opinion!!!