Use Frost Wyrms against Dryads, or tons and tons of Ghouls. Alternatives include Aboms (rare, but kinda good vs Dryads) or Banshees. Gargoyles kick Chims ass. Banshee's poss. vs Taurens, Ghouls against Shaman. Use Necros to keep raising Skels, 'cos IHATEMRJONS is correct about Ghouls.