While biting opponents' creatures and turning them into vampires is well and good, for five mana, Olivia can gain control of any other vampire
Apparently theyre looking into lengthening the time that these drafts will be available, so its worth checking the latest info before you buy in
If you ever wanted to build Oops, all Blightnings! then you have a Commander
With a 5 or more expensive drop Commander you can drop on turn 4 after this, you can drop this, draw a card, and start tapping for a lot of mana
While it is expensive and somewhat slow, if you can untap with it on the battlefield and a grip full of cycling cards, the game should quickly get out of hand, despite the randomness inherent in Unpredictable Cyclone