You can use Ambrosia Whiteheart to pick up permanents with good enters the battlefield triggers, save creatures from removal, or just pick up a land to guarantee another landfall trigger
During your turn, if an opponent lost life this turn, you may play lands and cast spells from among cards exiled with Theater of Horrors
We also have excellent prices
Let's examine what black is about: Desire for Power Advantage Demon Parasitism Advantage Vampire Selfishness Advantage Demon (although close) Sacrifice of Others Advantage Vampire (although also close) Corruption Advantage Demon (wow, so many of these are so close) Deceit Advantage Demon Amorality Advantage Demon As you can see, Demon slightly edges out Vampire
Cheatyface is one of the best creatures in the game because hes supposed to cost exactly zero mana because its main mechanic revolves around players trying to sneakily put him into play when your adversary isnt paying attention
Youll have plenty of high-priority threats and cards youll want a cheap insurance plan on in any artifact Commander deck