Azorious enchantment control, basically the goal is to make it so they can't attack, target us or our permanents, then trample them with a stampede of angels or whittle them down with Celestial Collonade
The deck definitely requires knowledge of the decks you expect to play, ex. Knowing to use Runed Halo against the threat you expect a few turns from now, or saving Detention Sphere for the Oblivion Stone against from rather than use it on the Wurmcoil Engine.
The easiest way to win is through Luminarch Ascension and Nykthos, Shrine to Nyx, but that is actually quite rare. With all the fetches and shocks everywhere beatdown with Grand Arbiter Augustin IV is hilariously effective, but collonade or Creeping Tar Pit is much more effective.
The mana base is mostly a relic from when I splashed black for Zur the Enchanter, but I've grown attached to it at this point. Reflecting Pool does tap for any color with only a Vivid Meadow down, allowing the deck to have incredible color fixing at the cost of a little speed. Leaving the manabase as is will allow me to splash virtually carefree in the future. If you want more speed as well you can swap some vivids for
Tendo Ice Bridge
s I don't like bridge because of the fact it only taps for colorless without counters, and doest have a way to "charge" ala Mirrodin's Core. Forbidden Orchard seems terrible but its actually pretty good in the deck, it activates Reflecting Pool, and I run so many cards that shut down the colorless non-flying spirits. These include Nyx-Fleece Ram, Ghostly Prison, Sphere of Safety, Detention Sphere (if they play cards like Lingering Souls or Spectral Procession) , and Supreme Verdict.
Basically you need to be preemptively countering their wincons with cards like Runed Halo and Leyline of Sanctity help with this.
Against decks that run cards like Abrupt Decay or
Erase
, Monastery Siege on dragons is extremely helpful, its basically a Greater Auramancy that is better against non-targeting decks.
Ghostly Prison clearly ruins token strategies, but is just good against any deck that runs creatures or manlands ( so pretty much every deck). same thing for Sphere of Safety a resolved sphere is pretty much gg for aggro.
Grand Arbiter Augustin IV is actually awesome he screws with so many decks in my meta which sort of rely on playing multiple spells in a single turn. And the emblem effect for me is just icing on the cake. The only major downside to him is he is within bolt range.
Sideboard:
Porphyry Nodes - for creature light decks side out Nyx-Fleece Ram
Greater Auramancy - for decks with enough targeted non-creature removal that siege isn't enough or replaces siege where speed is key
Nevermore - for cards my deck really can't deal with, or to ruin combo if it resolves
Suppression Field
- for decks with lots of fetches and/or activated abilities like twin
Rest in Peace - for graveyard based decks
Detention Sphere good against token, or decks which run on low creatures but a good amount of non-creature permanents