SD currently seems to be not correctly implemented when used by Marowak. Marowak with 13 ATK DVs using SD when at +2 already, it should fail. Since +2 13 ATK DV Marowak caps at 999 already there. Currently it does not do that, so Marowak can overflow due to that. Replay: http://replay.pokemonshowdown.com/smogtours-gen2ou-297058 Source: Too lazy to find one but I asked CE to research it up if he could by testing it out again, but I am 100% sure SD should fail when used a 2nd time by HP Bug or any 13 ATK DV Marowak.