As the OL, what are your strategies? I usually play my spawn cards as soon as I get them, and I typically don't even bother using my aim/charge/etc. cards unless it's a good monster or a crucial attack (i.e. one that will kill a hero). I can usually save up enough threat this way so that when power cards come up, I can play them quickly. When I have multiple power cards from which to choose, I play the cheapest one, so I have some threat left over to psyche the heroes out. I also save my traps until I can chain them together for an instant kill (i.e. exploding, door, crushing block, then poison spikes).
What do you guys do when playing the awesome side?