During my testing I have reached the conclusion that some kind of GY hate is needed in the sideboard.

So far i think I want to take out Supreme Verdict in my sideboard and put a Relic of Progenitus instead, as I feel the aggro matchups is already in our favor, but not when it comes to the amount of creatures Dredge can spit out quite quickly. I have yet to find out what to take out for a second Relic.