Grave Devotion

Open to suggestions for changes, few cards I've thought about using but I wouldn't know what to lose are Refresh to play on the creatures I want to keep alive like Oasis Seeker, Vampire Bats, and Blistering Wasp. Ancient Bauble for another way to proc Lifeforce, or perhaps a relic weapon like Lifedrinker or Hatecleaver. Though I've thought that maybe Extract would be better than a relic weapon for removal, proccing lifeforce, and a little deck manipulation in scout.