Dredge, my favorite deck in Modern, is back, but you only get so large a window before the metagame reacts and graveyard hate increases in every sideboard, making your road tougher. Despite a great weekend in Dallas, I felt comfortable playing the deck at the SCG Tour® stop in Charlotte, taking a solid 16th place despite a large amount of hate.
For Grand Prix Atlanta last weekend, a tournament that was sure to have a similar density of hate and where the margin for error is slimmer by nature of the size of Grand Prix, I couldn't pull the trigger again. I opted for the Infect list I suggested last week , as played by Aaron Barich, finishing with another solid, but unsatisfying 11-4 record, though this one was only good for 75th place.
I chose Infect because it has a good Dredge matchup, is weak against the high-interaction decks that Dredge is good against, like Jund and Azorius Control, and is a powerful, linear deck that doesn't care about its graveyard, and would thus likely face a field that sacrificed some percentage points in the matchup by stacking their sideboards against Dredge.