You dont really need terraforming, snow can search gates. Try to reduce your dark world dealings in favour of other discard cards, in the mirror it can kill you and in other matchups where they want cards in the graveyard they will be making advantage over you, for example:
you use dealings and discard Broww, you used 2 cards and drew 2
your opponent discarded his spore and drew 1
you seem to be at the same place in terms of card presence but he has a spore in his graveyard as well due to your play.
PS: where is your acid golem?!
