It has been the subject of extensive commentary, either for Type 1 tournament usage as a restricted card, or as as a regular card following its unrestriction
He costs two black and three colorless, draws x cards, and loses x life where x is speed at the start of your draw step
All of the decks feature big, splashy creatures and some combos, including lots of evasion, so theres usually something out that can start swinging away
Trample allows all excess damage a creature deals to be dealt to a player, making it even easier to use abilities that trigger when this happens, while reach allows them to block creatures with flying, which can be nasty if left alone
All you really need is a steady stream of card advantage that helps you make larger plays on your turn
Flexible Storage Capacity: With the ability to accommodate approximately 700 standard 20 pt