Your favorite hyper resilient, immortal cockroach secklists?

I would love to know what people are running that keeps them constantly in the game, that fights back even after getting key spells countered or boards wiped or hands discarded. Decks that consistently turn games around when they get left alone for too long even if they are in dead last place on board.

What decks do you turn to when you need to grind out a win against oppressive control or put up constant pressure against dangerous combos?