My first unupgraded rainbow deck, need helpful suggestions

[Minor Vampire]

ok so i been looking over the forums and wiki at the posted rainbow decks, so i decided to make my own.  As my title says, its my first rainbow deck im constructing. I dont like rainbow rush so i went with my own AI3 grind deck, so here it is:

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4sa 4sa 4sa 4sa 4sa 4sa 4sa 4sa 4sa 4sa 4sa 4sa 4sa 4vh 4vh 4vj 4vj 4vj 4vj 4vm 52n 52r 58v 590 590 592 5c2 5c2 5c6 5c6 5f8 5f8 5if 5lb 5lf 5lf 5oj 5on 5rl 5rl 5rl 5rl 5rp 5rp 5rp 5rp 5up 5up 61t 61t

This deck actually does pretty amazing against AI3 and most Top 50 except rush decks. It's fast once it gets going, which is usually 2-3 turns somethimes by 4th turn. So yeah, any positive  suggestions are welcomed. Thank You

[BloodlinE]

why mark of earth?

[tinkady]

first of all, there really is no point to making big slow decks for AI3 or top 50. speed decks are just much more effective. if you want something strategic then grind AI3 until you can afford an entry-level false god deck.
now for the actual deck...the deck seems a bit lost and without any central theme or combo or anything to it. if you want the bonewall/boneyard/druid combo to be effective, double up at least the boneyard and add in a few otyughs...this has no reliable source of creature control.  i'd also suggest changing mark to time and taking another hourglass, theres no real point to having your earth mark