Although I've given away hundreds of cards, I have never completed a run of the superhero cards and would like some help.

I'm looking for

#8 Falcon
#12 Iron Man
#18 Lizard
(could also use #68 Drac)

I have the following to trade:

#5 Joker
#9 Batman
#11 Catwoman
#16 Robin
#21 Riddler
#28 Penguin
#36 Bruce Wayne
#37 Dick Grayson

Thanks.