+1: Artifact and enchantment spells cost you

less to cast this turn.
-1: Return target artifact or enchantment card from your graveyard to your hand.
-7: Cast any number of artifact or enchantment cards from your hand or graveyard without paying their mana costs.
Created for Challenge # 075 for the 'Weatherlight Planeswalker Project'. I wasn't sure whether to stick to "artifacts and enchantments" as Hanna's thing, but it did seem to come out quite naturally. I'm also glad that there are enough effects that like artifacts-and-enchantments that I was able to avoid duplicating anything that had been done by Tezzeret the Seeker, Tezzeret, Agent of Bolas or Atine, Sculptress of Dreams.
I like that the + ability can easily affect multiple artifacts a turn, especially if you're playing with things like Mycosynth Golem.
Ah. I was concerned about that +1 not having enough oompf... but you're right. It's a combo-enabler. That seems like reason enough.