formats), limited sealed deck and drafts (generally using the most recently released expansions), as well as larger tournaments that take place according to a regular schedule. Entering events requires an investment of sealed packs and/or event tickets, with winners being rewarded with additional product. Up until Version 3, League play was another method of competitive play. These month-long events were sealed deck tournaments of 256 players that allowed for intermittent play over a period of 4 weeks at the pace the player desired. After 6 years, leagues returned in February 2016. Initially they were only available for the sealed limited format. Leagues last two months, and in that time window a player can usually play between 5 and 9 matches. Once a player finishes playing their league matches, prizes are awarded and they can rejoin the league if they want. Currently, leagues are available in a variety of formats, including Standard, Modern, Legacy and Limited Sealed. Sealed leagues also offer "Friendly" and "Competitive" alternatives with different prize structures. The Competitive Sealed League lasts for 5 matches and typically features higher skilled players due to the top-heavy prize structure - winning all or most of your rounds provides a lucrative prize, with the downside of no prizes being offered to those who win less than 60% of their matches. The Friendly Sealed League lasts for a total of 9 matches and caters to a larger portion of the player base and offers prizes regardless of number of matches won. In addition, after each "stage" of 3 matches, the player has the option to add a booster pack to their deck to make it stronger for the next stage (either by using one from their inventory or purchasing one within the sealed tournament window). Development Leaping Lizard Software (LLS) had just completed a software product Magic Interactive Encyclopedia designed to allow Magic players to track which cards they owned and other cards that had been printed to help with online play. LLS initially approached Wizards of the Coast with an offer to create an online version of Magic: The Gathering. WotC was skeptical about whether such a system could be implemented. LLS then created a tech demo to prove to WotC that an online collectible card game could work. WotC was sufficiently convinced and contracted LLS to develop the service, which was then known as Magic Online with Digital Objects (MODO). Initially,