As announced today, 20June 2011 the following two cards are banned from standard:

• Jace, the Mind Sculptor
• Stoneforge Mystic

The rule will be effective from 1 July 2011.

For me it has a plus and a downside:

• Plus: these cards will be cheaper, I want one  Jace and three Stoneforges to complete my collection
• Down: Stoneforge Mystic will be lacking from my full-Kor deck.