The $20 pack comes with 3 master challenges, available immediately, and a single boost (unrevealed at the moment). The $60 and $100 packs come with 13 and 39 master challenges as well as 5 and 15 boosts, respectively. These two packs also offer a free Founder’s Pack to give to a friend and the exclusive Hotrod Howitzer skin, seen below. Early Access will begin on March 18th.
More information on Paragon and its Founder’s Packs are available on the game’s site.