It doesn't even have any mechanics until you go to AskUrza.com and get a set of random ones every time you play
Santa's Reindeer You know Bellowing Elk , and Dawnglade Regent , and Highland Game , and Golden Hind
In decks capable of generating a lot of mana through rituals for example, this sounds very fun and powerful
It also has the potential to be the biggest eldrazi, caring about not just cards exiled with its own abilities, but from anywhere, making it paltry to get plenty of +1/+1 counters on it without casting
Sacrifice this creature: Counter target spell with in its mana cost unless its controller pays
You can go aggro as this list tries to do or you can go combo and just aim to one shot people with Bidding and things(another good one to do in green with things like Survival of the Fittest)