Totally revised. Got rid of the Sphere of Safety and Blind Obedience and instead force players to deal with deathtouch or lifelink enchantment creatures using Ethereal Armor with Baleful Eidolon or Hopeful Eidolon this can be anything from a turn 2 3/3 lifelinker to a turn 3 3/3 deathtoucher or if I had two etheral armor's or more hopeful eidolons for turn 3 to pump the effects, even greater. This seems to be able to get me to the Hold the Gates and the real killers of this deck like Treasury Thrull or Daxos of Meletis
Perfect fast hand:
Turn 1: Plains, Hopeful Eidolon
Turn 2: Orzhov Guildgate, Ethereal Armor, attack for 3 lifelink and first strike
Turn 3: Swamp, Ethereal Armor on Hopeful Eidolon, another Hopeful Eidolon or Baleful Eidolon, attack for 9 lifelink and first strike
Turn 4: Island, Hold the Gates, Hopeful Eidolon, attack for 14 lifelink and one of them (the 13/14) with first strike and now vigilance which gives you blockers for next turn if there is a next turn.
Most times the deck will probably need be more reserved but there is a good chance you can at least threaten the player with an eidolon and ethereal in the early game. They'll have to at least play at a slower tempo themselves. If they waste all their board wipes on this early stuff then the later stuff will be that much harder for them to deal with. You've also probably gained somewhere between 5 - 10 life by this time and can probably take a hit or two.
The protection for Daxos of Meletis and Treasury Thrull includes Hold the Gates, Gift of Immortality, and Brave the Elements
This is a combo deck but it's one that constantly keeps your opponents guessing. The side deck is also multifunction and can deal with most eventualities.