Pic related. I had a sort of on-again off-again experience with EDH, and then I picked him up on a whim in a random trade about 10 months ago. When I got home, I threw 99 other random junk cards that vaguely fit together and called it a deck. Over the course of about 6 months, I slowly traded/bought more cards for it, rigorously tested it each week, and the deck evolved and naturally grew into the efficient battlecruiser engine it is today.
My Kruphix deck has a lot of sentimentality to me because of how I built it, and it lets me do all the big dumb ridiculous plays that I love to do in Magic. I don't think I'll ever get bored of him.
Also it lets me win regularly with one of my favorite cards ever, Hydra Broodmaster so that's a big plus too.