You could have went for miasma, metagross, gallade, 50 so far, with crobats (thats a few dead tech's and basic's) and deal thunder fall damage, sure it would be a painful setup but if it succeeded, would it pay off? but by the time mammo would be dealing damage your at 70 dmg a turn for spread with additional options to do more damage (due to crobat's). Great idea. cya