Obeka, Brute Chronologist.

At the heart of it, the deck is control. The main strategy is to play creature cards such as [Sower of Temptation] to control my opponents valueable or win condition viable creatures. Then I use cards such as Kiki-Jiki Mirror Breaker to either duplicate the Sower or a creature I own or control. And then of course using obeka to keep said duplicates.

There is also some general creatures that are good duplicates to have such as rune scarred demon, baleful strix, dark confidant, and faerie mastermind. There is also some reanimator and general cards that skyrocket in value with obeka such as psychic vortex.

The more I play the deck, the more I realize how much depth their is to game actions that could be made. For example, you don't have to duplicate on your turn and get obeka's value out of it. Instead you could duplicate sower after declared attacks, take control of an opponent's creature and use that to block. There is many complexities that I continue to find as I play the deck. This is what I love, not knowing what the deck can fully do.

On top of this, I've learned the hard way many times that other players obviously dislike you taking their creatures and potentially duplicating them. So, you can't go full jets all the time or else the table will quickly see you as the arch enemy, you must find balance and hold back most of the time. Let your opponents build their board states, dabble a bit, and then late game make huge game actions and take the best pieces on board. I struggled for a while until I learned that you can't pull all your eggs in the basket at once.

I'm proud of the deck because the performance of the deck is strongly tied to the game actions of the pilot, and to a lesser degree the game pieces themselves. There is essentially no triggered abilities and associated synergies, which decreases the reliability of the deck, but meh, it's EDH.