Only a few dragonspawn pass his tests and only the strongest of them are allowed entry into the lair of the brood mother. Many trials must be passed and the key to enter ceremoniously enchanted by General Drakkisath himself.
Emberstrife is also required to create the key to Upper Blackrock Spire; players must battle him, weaken his will, and take control of his mind long enough for his flames to forge the unfired key.