T1 Uppers, Rescue, and Montana are just very hard to deal with. Montana can run Hugo and just run wild on you, Uppers get Jackie, and Rescue get Alec Cr and Marco. Best yet, as it's T2 there's no real penalty to run those staff banned cards. Opponents may consider these decks cheap, but forget them. You're trying to win, not make friends.
In T2 you want Ulu Watu, Sentinels, or Nightmare, though All Stars can do surprisingly well. Just remember in t2 Deathmatches there is absolutely no reason not to run all high end star count characters. And you should run a Leader unless you're running Rescue. T2 DM is a completely crazy scene as you have no staff penalties, star penalties, and no reason not to run stupidly strong cards.