Destiny | Completing the Shadow Call Mission (Sleeper Simulant)

The second mission in the Sleeper Simulant questline will task you to ascend the Spire in the Cosmodrome solo. You'll have four minutes, which is more than enough time to complete it. Simply bypass many of the enemies, equip your sword to deal with swarms, and then unleash your supers on the last three wizards or cut them down with your sword.