Bring the Whirlwind Heart to Bath'rah Windwatcher.
The following spell will be cast on you:
I am ready to perform the ritual to summon Cyclonian. When he is summoned, you must defeat him and take his whirlwind heart. This I will use to instill a weapon with Cyclonian's power.
<name>, are you ready to face the wind lord?
<name>, I must have the whirlwind heart!
You did it! You defeated Cyclonian and gained the Whirlwind Heart!