Was wondering how quint would fit into this. Yes, I know quint is uncommon in rainbows like this, but hear me out. Twin universe, sure is useful, but quintessence is half the cost, meaning you could pack in two. This could protect your growers like Lava destroyer and forest spectre from CC when they are first put down as well as protecting from antimatter (the bane of this deck).
seems to one of the most flexible elements to decide which cards you want to use. Phase recluse? Dimensional shield? Quintessence? Twin universe? Or Lightning for CC? (This deck is also weak in that it has no CC)