The main focus of the deck to focus on controlling your opponent's threats with Auras (Pacifism, Sensory Deprivation, Claustrophobia etc.) and protect your boardstate with counterspells. Once you have a Sphere of Safety, your Pillowfort becomes much more effective in preventing your opponent from attacking.

The win-con of the deck lies mostly with Thassa/Heliod, as they are inexpensive enchantments which become much more potent the longer the game runs. Thassa allows for unblockable attackers and Heliod gives you attackers, blockers and powers up SoS.

The sideboard gives you more counterspells in the control matchup, as well as alternate win-cons in the shape of Jace or Gideon. Jace is ideal as a finisher against slow control decks, whereas Gideon can turn the tides of an aggro matchup by becoming too big to handle.

The only real weaknesses of the deck will be any boardwipe that hits enchantments (Merciless Eviction, Cyclonic Rift, Planar Cleansing), Slaughter Games and to a lesser extent Golgari Charm. If it is dropped before you can establish your defenses, Stormbreath Dragon can become a hassle, however I have included Rapid Hybridization in the sideboard for that eventuality.