Ultros, Obnoxious Octopus The difficulty with casting 4-mana noncreature spells is that they often dont affect the board, and that can cause you to fall too far behind your opponent, especially when theyre aggressive
The biggest difference in EDH is that you have to sac it or donate it, because a 6/6 wont be winning you any games by itself
Gigan, Cyberclaw Terror - Gyruda, Doom of Depths is a Rare, Lgd
Greater Auramancy A simple enchantment in Greater Auramancy really goes a long way in protecting your precious permanents
Shadowspear Finishing up with perhaps the best answer to Hexproof cards (other than a boardwipe)
Especially since many of these bulk cards dont see as much game play as the higher echelon Magic staples like The Great Henge, Rhystic Study and Ancient Tomb