Hope you dont consider this thread "dead ages ago"...
Pure reflection works also nice with spirit mirror. Reflection theme! The mirror ables you to kill every reflection token you opponent might produce.
Ideas for unnatural selction:
spirrit mirror,voidmage prodigy,mishras factoty,king suleiman,crystalline sliver (and maybe winged and others), elephant graveyard,seaside haven,knight of the mists,callous oppressor,standard bearer(?), lord of atlantis. Add some mistforms.
Yes, I did make the deck
I believe theres some U/G comboway too, combining the unnatural selection/griffin canyon/animate land(or other) combo with some argothian elder/maze of ith combo.
Argothian elder/maze of ith/griffin canyon/unnatural selection/another creature (yes, this is lots of cards) makes an infinite large creature. Mishras cuts the combo down to 3 cards, and fits well with unnatural selection. If you like strange comboes, this might be worth a try...