My guess is that this was a playtest name given to the card by the design team and development loved it so much that they decided to keep it
Transformed they become Olag, Ludevics Hubris, a monstrous Zombie 4/4 that reads, As this permanent transforms into Olag, Ludevics Hubris, it becomes a copy of one of the exiled cards, except its name is still Olag, Ludevics Hubris, it has base power and toughness 4/4, and its a black and blue Legendary Zombie in addition to its other colors and types
MSRP for a Collector Booster pack, according to an official article from Wizards of the Coast, only amounts to about $37.99
Take Obelisk of Alara
Evelyn, the Covetous Evelyn, the Covetous would be my choice for a vampire-typal commander simply because Im a sucker for card draw in the command zone