I have for you:
1) #1 Alien on the moon
2) #2 Aliens in space
3) #3 Aliens arriving on Earth
4) #4 Fighting against aliens
5) #5 Dr. Oliver Pendaka
6) #6 No mercy
7) #7 Lonely alien
8) #8 The last battle and
9) #9 Moon landing

Trade each for:
1) 200 gems
OR
2) other Trading card of this game + EXTRA
[EXTRA = 10 gems OR emoticon OR background]
OR
3) 4 or 5 good Trading cards of other games
[No 1:1 or below value]

Also have foil #2 Aliens in space:
selling for 800 gems.