A monogreen angel? This feels like a strange card flavorwise. I also think the spellshaper aspect should be changed to Pray. "Whenever you Pray, Creatures you control get +3/+3 and gain Trample until end of turn." The 7 mana cost lines up with Pray in a big way. Odds are just Praying more is going to be better than playing another creature, so if you want to be using your mana on other things once you get to 7 it should line up with the rest of the deck.

Overrun Spellshaper is over the top. I'm pretty sure this needs to change.

I think this should be moved to RG05. The current RG05 doesn't feel like a Giant Creature, but this certainly does.