Not kidding... I just wanted to pick four up cheap for a goofy non-competitive deck and I can't find one from any bot on MTGO. Not sure if someone is speculating or if this is maybe somebody's idea of a prank. Not sure how much supply their demand can keep up with but someone has bought a lot of the darn things.
http://mtgowikiprice.com/card/m13/193/thragtusk
http://www.dojotradebots.com/prices.php
http://www.goatbots.com/prices-m13.php
http://www.mtgoclanteam.com/Cards?edition=M13
looks like traders is OOS
http://www.mtgotraders.com/store/M13_Thragtusk.html
judging by the price, it doesn't look like it's being bought out, yet
http://www.mtggoldfish.com/price/Magic 2013/Thragtusk#online
There might still be value @ 1.4 tix... you could put your money is worse places.