Those of you not familiar with Baneslayer, take a second to get acquainted . She's a 5/5 with 5 abilities for 5. Pretty damn awesome in any format, and to the rejoice of all, she will be returning in M11.
Blue White control has enjoyed it's reign at the top in several standard events for the past couple months, and even managed to take first at a GP. Jund is still the deck to beat, and likely will be until the deck rotates in the Fall, but with the release of Magic 2011 next week, Wizards again looks to shake up the format.
Hey Baneslayer, suck it. Where red's previous options were limited to double lightning bolt, or sorcery speed removal, it now has the (potentially main board-able) answer to the best creature in the format. And for only one red, it can easily be splashed in any deck that can support it. Between this, the new Leyline, and the new red version of twincast, it's obvious why Baneslayer has fallen nearly $20 since M11 was announced.
Speaking of game changers, Mana Leak is back. Yes, finally, a two mana counterspell. The thing blue has been lacking since 8th edition. Oh, and this bit of ridiculousness.
Standard has been nothing but boring since Lorwyn rotated. There has just been no real chance for variation. You either play Jund, or you lose. That's all about to change however, and who would have thought that a core set would be the thing to do it?