Can you rate my magic deck?

This deck has way too many high mana cost creatures and very little mana acceleration to get them out. You need to use cards like Overgrown Battlement, Llanowar Elves, Birds of Paradise, and Joraga Treespeaker so that you can get your big creatures out fast. Cards like Cultivate, Harrow, Explore, and Primeval Titan also get you lots of mana to summon the big creatures.