As a very new player to magic I am trying to learn how to build decks. my collection of cards are mostly from the last two sets that came out. I have no real knowledge of cards that came from earlier sets. So any advice would be very much welcome.

My whole idea behind this deck was to use Xenagos to bring out big creatures. the reason I add in the slivers was i need some sort of cohesive presence early and with the limited amount of cards I own slivers seemed to make the most sense.