Is this card anygood? I am thinking of buying 1 or 2 fairly cheaply, well at least I think so. I know this card is somewhat sitational, but it can be very powerful, especially for a cost of only 3 mana

Krosan Beast is indeed a sitational card, it depends what you plays and it depends how you play it, the card itself is really good if you can create a right enviroment around it.