He considers the problem, and then steps away from group to transform into a handsome gold dragon. He gave his new shape a once over, before grimacing. "Never tried a fire dragon before, and it feels weird against a lightning dragon. Open the door, I toss in a fireball, and then rush the undead. The air elemental can't really be hurt by undead, so it goes in with me. The rest of you follow as the undead try to fight me. They normally attack the first thing they see, in this case me, as a dragon, which they probably can't hurt much, especially since my magic is amplifying the natural armor of the dragon. How does that sound?"