The Modern format will be losing Second Sunrise, a staple of the Eggs combo deck. WOTC's announcement cited notably lengthy tournaments brought about by Second Sunrise as their motive. Additionally, Regrowth has been unrestricted in Vintage. You can find more information here — http://www.wizards.com/Magic/Magazine/Article.aspx?x=mtg/daily/feature/244b2
Wizards Updates Banned and Restricted List, Bans Second Sunrise
Posted on Monday, April 22, 2013