Just getting started in EDH, but making as valid of an attempt at my first commander deck as possible. Here are many of the deck mechanics and combos possible, as well as explaining the deck as well as possible.
The deck is full of control of a lot of types, including counters, land destruction, creature control and exchange, board sweepers, etc.
One main combo is to give creatures protection from white and play Dimensional Breach (or Martial Coup or Day of Judgement) to sweep the opponents board. Protection can be given with Glory in the graveyard(either letting it die, countering it yourself, or killing it with High Market), Dominaria's Judgement, removing your creatures from play beforehand with Ghostway, or using Safe Haven a few times on key creatures and bringing them back for free(the least desirable option for this, but Safe Haven can also keep important creatures safe from removal). And then start swinging.
Another win con is the obvious Felidar Sovereign, with lots of life gain in the deck as well as Invincible hymn it's pretty easy to gain life.
Another option is with mana denial through Strip Mine, Wasteland, Ghost Quarter, and Crucible of Worlds. These pieces if not found early can be searched with Parallel Thoughts and drawn fairly easily. Parallel Thoughts is also useful on its own.
The deck gets lots of draw with Ponder, Preordain, Rhystic Study, and cycling lands.
Sun Titan works great with the 3 drop creatures, and almost all of the artifacts in case they get destroyed. Clone, Phantasmal Image, and Phyrexian Metamorph can copy important creatures or kill of your opponents legendaries. Windborn Muse, Spelltithe Enforcer, and Loxodon Gatekeeper also help with lockdown, and are even better with Grand Arbiter Augistin IV in play.
Zuran Orb is there to help gain a bit of life if needed, and useful before casting Dimensional Breach. Also good for gaining some more life points for Felidar Sovereign.
Library Manipulation with Sensei's Divining Top and Soldevi Excavations, as well as multiple ways to find the basic lands, mainly with Thawing Glaciers which is great for thinning the deck. EDIT: Newly added Mystic Speculation for scry, thanks to RaiderKrom for the recommendation.
Trinket Mage, Fabricate, Merchant Scroll, and Enlightened Tutor are good for deck thinning and finding answers.
Finally, Venser is extremely useful with things like Trinket Mage, Mulldrifter, Sejiri Refuge, Sun Titan, Solemn Simulacrum, Karmic Guide, Sphinx of Lost Truths, Snapcaster Mage, and any flyer when Archon of Redemption is out. His second ability is equally good if i can't get a board sweep, and his final ability is... well.... his final ability
The mana curve is strange, but Grand Arbiter Augistin IV makes it much easier to play.
So far the deck has been a blast to play and has done pretty well in the short time i've been playing with it, but I would appreciate any comments and critiques!
Note: Meteor Crater will be replaced with Tundra once I get another one.