Hi, I have a pretty good stragety by looking at the spoiler. Here it is:

Steel Claw + Norbert + Hagrid ----- Hagrid adds 2 damage if you do 3 or more, so Norbert is already doing 7 damage (5/3 I think). Then you do Steel Claw, All of your creatures deal their damage to your opponent (Kinda like Rentless Assualt in M:TG). So Norbert does 14 damage in one turn =D. Add more beefy creatures and you get even more damage.