Decks you didn't build or had to retire because the play experience of playing against them would be awful.

Every one has had the decks that just ended up not fun to play. But what about the other way around, decks that might've been cool to play but would be horrible to play against. Maybe the play pattern was too staxy or made the opponents to miserable or maybe the deck ended up dominating the clock or just didn't gel quite well with your playgroup.

Personally i kinda avoid making decks that would be "too salty" so there were a few decks that i thought about building but ended up not going for. For instance i was thinking about making a monoB discard/sac deck but decided against it since it would likely make the game go very slow and super grindy. Another idea i've been doing around is a Simic flash deck but feels like that could just take too much time taking essentially 2-4 turns per each turn cycle.

So any deck you didn't build because you like having friends?