MLG and Valve have teamed up to offer the Dota 2 MLG Championship Bundle, which comes with the Deathbringer Courier, HUD, Ward, Battle Bonus and purchasers will be eligible for in game item drops during the MLG Championship Columbus.
MLG said in the press released sent to VG247 that 25% of the bundle's price will be put into the prize pool, which started off at $50,000. Purchases of the bundle raised the pool to $75,000 within 12 hours of going live - the prize pool now stands at $90,000 - MLG has told VG247.
The bundle will sun you $9.99 and for every bundle purchased, another $2.50 is added to the pool.
The 2013 MLG Championship runs November 22-24 and you can pick up the bundle and find out more information on it here.
During the Columbus Championship, the first-ever Call of Duty: Ghosts event will take place as well with a $50,000 prize pool, and first place walking away with $20,000.