Hey man I'm going to be your tutor for this round! I hope we have some good lessons...I unbanned you from #rarelyused (I will not let you stay banned) so we can meet up on IRC! What's your timezone and w/e?
You don't have to use Steel-types or hail to counter Druddigon. I said that due to its terrible Speed, it is easily revenge killed by powerful attackers such as Moltres, Gallade, Durant, etc. Sure they need a little residual damage to KO but that's not hard to accomplish at all, especially on a Pokemon with no recovery.