Tyranitar@Leftovers
Quiet Nature
-Focus Punch/Rock Slide
-Thunderbolt/Thunder
-Ice Beam
-Crunch/Hidden Power Grass/Fire Blast/Earthquake
Focus Punch works better on NB, but Rock Slide is good for an attack move to hit Special Sponges ingame. Boltbeam as you know hits every pokemon bar Shedinja (who dies to Sandstream), Lanturn, and Magneton for at least neutral damage and Magneton and Lanturn get hit hard by focus punch and rock slide ingame. Crunch is a good STAB move and hits Slaydol, Starmie, Celebi, and a variety of other Psychic pokemon harder than the Super Effective move. For example, Celebi gets hit harder by Crunch than Ice Beam even though both are super effectvive. Crunch also has the benefit of hitting ghosts hard, but most of them like gengar have bad defense so Rock Slide takes a big chunk out of them. It also beats Light Screen Zapdos. Dusclops you should watch out for, but you shouldn't leave it anyway MOST of the time. (Boah can beat it, but DDtar can't since it has to face focus punch and will-o-wisp, and CBtar COULD beat it I guess with boosted rock slides, but it has to watch out for deadly burns). Hidden Power Grass ****s up Swampert, its number one switch in, but its hard to get ingame and swampert shouldn't be an ingame threat and you can switch out Tyranitar anyway. Fire Blast beats Steels like Metagross who could pose problems, hits Grasses harder than Ice Beam, and hits Magneton who resist boltbeam. Earthquake is there if you want to use his massive Attack.