Grindy Midrange Think Tank

Recently I've been trying to brew a grind-em'-out Modern Jund style deck that wins though efficient 1-for-1s and then dropping a card that begins to accumulate value while our opponent is top-decking (Similar to how Jund can dismantle an opponent's strategy with discard and removal, then ride Liliana or Bob to victory). To the removal/discard end, red and black seem to provide a good shell with cards such as [[Duress]], [[Augur of Skulls]], [[Blightning]], [[Wrench Mind]], [[Chainer's Edict]], [[Terminate]], [[Lightning Bolt]], etc. While these cards can effectively disrupt the opponent, there are no cards like Liliana and Bob that can simply sit on the field and win the game (and for good reason), with the closest substitution I could find being [[Survivor of the Unseen]]. Do you know of any pauper-legal cards that can win the game on their own if left alone by our opponent? All suggestions welcome.