1300 with this deck is pretty nice I think, considering several situational cards.
A lot of people might suggest you to not use any 4 star and use Cliff and Sledg both. Steve is nice too. I think that is more stable than what you have right now.
It's worth noting that a 1300 something elo is pretty good already, like, top 10%.
But the goal is always 1500 right guys?