I really like this cards to support Alien archetype...
I'm not a pro player, so i'm open to feedback!
This deck in general is focused in Link summon and XYZ. Maybe you guys can remove some of the alien monsters to add some generic or alien spell and trap cards.
The side deck have some cards to help more in XYZ summon, more cards to have fun and more synchro cards to the synchro summon. This side deck is very relative...