Jace, the Mind Sculptor and Stoneforge Mystic – Banned in Standard
This ban is effective from July 1, 2011 and for MTGO, June 29, 2011.
Read the full announcement here:
There is an exception in the banning of SFM:
“The deck list for the ‘War of Attrition’ Event Deck will be legal in Standard if kept completely intact.”