I built one. I used to play Shrines in Standard back in the day, so I've had a soft spot for them forever. It's Sisay, with Jegantha as the companion. I don't run MLD or any oppressive combo pieces, just shrines and ways to get them back when they die. Honestly, I'd rather that Sanctum of All were the commander, so that I could just go all in on my silly durdling plan, but so it goes. I've played it once, and my opponent recurred Austere Command every turn. So, I lost that game. I don't know if that means that the deck isn't powerful, but it's certainly not the strongest thing that I could be doing with the Captain.
As for whether or not you're a dickhead? You attacked and moved the game along. SOMEONE has to win the game.