It is one of the major reasons I preferred Jund Burn to Naya Burn in Modern, and its simply the best answer to huge green creatures that are in your way
Ludevic, Necro-Alchemist & Livio, Oathsworn Sentinel - You can make a lot of deals with Livio, offering to save a creature that's about to get destroyed or exiled
Treasures are the second big theme of the deck
There was also one thing about Archenemy that's always been a bit more bug than feature
Either he can deal a lump sum of damage equal to his most expensive equipment to any target, or he can cast a free instant or sorcery spell from your hand, assuming, of course, it costs less than his most expensive equipment
After a couple days of Mark Rosewater reiterating his belief that the Mystery Booster Playtest Cards shouldnt have been made, Wizards announced well be getting a chance to play with them again