When wurm's fly(help?)

Ok, first of all im gonna assume that you are building a vintage deck and therefore the following thoughts are based on that.

first of all you NEED consistensy. never have 1 of a card. usually you wonna have 3 or 4 (sometimes 2) of the cards that you have in your deck. that way you are more likely to get the really good cards = more likely to win.

You seem like a bit of a new player so let me just tell you that when you choose a format you need to take all the power you can out of that format. so if you play Vintage, a decent Standard card wont work for you.

ok. Artifacts. im sorry to say but none of the artifact you have chosen seems good enough to be worth having in your deck and probably not even worth their mana cost.

now: creatures. im gonna mention those i have a problem with.
Axebane Guardian: not enough defenders in deck
Diligent Farmhand: there are way better cards to help you with mana
Gatecreeper Vine: not worth since you dont have any gates in deck, and generally not that good.
Golgari Decoy: 4 mana for a 2/2 with no really good effects = not worth

and for the rest of the creatures they all have something in common: they dont really do much. you need to take cards that fit well with each other.
if you need mana ramp cards go for elven mystic and cards like that (do a google search for similar cards)

Other things:
Verdant Heaven: not wirth it when you only need green mana

After notes: go to the gatherer (magic card database) set the format to standard and the color to green and search for cards you consider good, then cut them down to your top 10-15 cards and then make a standard deck out of that. put it on this wepsite and i might be able to make notes on it again. but this deck is not gonna win against anyone who been into magic for more than half a year or so.