Obvious miss seems to be Mana Confluence. Commune with the Gods can help you find your Trail of Mystery (I'd go 4/2 Trail of Mystery/Secret Plans split), which can get you your mana. Rattleclaw Mystic might help provide some additional mana fixing, and you might want to consider Ghostfire Blade to equip to your morphs before they flip.

Thanks piebandit, the Rattleclaw Mystic is a great idea - will add as soon as I can get some to replace the Sylvan Caryatid. Also like the idea of the Ghostfire Blade though I'm not sure what to take out for them?

I'd sideboard them against aggro and control, gives you meatier blockers early and finishers later.

FYI, check out the spoilers from fate reforged. There's some good stuff coming this type of deck's way

That new soulflayer will be a nasty ass addition to this.