Tyranitar HP: 100 Atk: 134 Def: 110 SpA: 95 SpD: 100 Spe: 61 Background info: Tyranitar is just that one Pokemon whose usefulness extends far beyond the OU metagame. In GBU, this is certainly no exception - Tyranitar's incredibly massive movepool, Sand Stream ability, and combination of power and bulk allow it to perform many roles. Its excellent stats and SpDef boost from Sandstorm allow it to be extremely flexible with its EVs (which in turn makes it tough to point out a standard). I won't list out Tyranitar's movepool here (go click the link if you need it), because it's so big. Singles Sets Supporting Sasher Tyranitar @ Focus Sash Trait: Sand Stream EVs: 4 Atk / 252 SAtk / 252 Spd Hasty Nature (+Spd, -Def) - Thunder Wave - Ice Beam - Fire Blast / Flamethrower - Crunch This particular Tyranitar set is often seen with Substitute Garchomp, and it's not hard to see why. With Sandstorm + paralysis from Thunder Wave, Garchomp can set up Substitutes and Swords Dances with relative impunity, allowing it to ravage the opposing team. Ice Beam is excellent for taking out Ground types as they otherwise absorb the Thunder Wave, and also takes out Salamence and Dragonite. The fire move is for Steels who resist this entire moveset otherwise, and Crunch lets it threaten Lati@s, Gengar, and so on. Tyranitar is an amazing Sasher due to the fact that Sandstream can potentially eat away at opposing Focus Sashes, and also due to its large number of weaknesses. Offensive Sasher Tyranitar @ Focus Sash EVs: Use Your Imagination Lonely Nature (+Atk, -Def) - Crunch - Superpower - Fire Blast - Stone Edge / Ice Beam This is what I'm currently using since I don't need the TWave support that badly. This particular TTar set focuses more on coverage. The EVs can be tweaked in however many ways you like it to be. In my case, I gave it enough bulk to survive 2 Specs Draco Meteors from Latios while having enough offense to actually hurt stuff. Some Speed is nice too. Choice Band Tyranitar @ Choice Band EVs: 252 HP / 252 Atk / 4 SDef Adamant Nature (+Atk, -SAtk( - Crunch - Pursuit - Stone Edge - Superpower Same deal as your usual OU set really. You can invest in SDef for extra bulk. Also, most CBTars I've seen are faster than this so you may want to speed creep. Pursuit is the crux of the set here-guaranteeing a knockout on 1/3 of your opponent's team can be very devastating, but keep in mind that if you don't play this carefully, your opponent can take advantage of the choiced Pursuit and set up. Doubles Sets: "Standard?" Tyranitar @ Chople Berry / Iron Ball EVs: 252 HP / 252 Atk / 4 SDef Adamant Nature / Brave Nature (+Atk, -SAtk) / (+Atk, -Spd) - Crunch / Fling / Payback - Rock Slide - Low Kick - Protect I don't know what else to say for this. In doubles, Tyranitar appears to use less of its wonderful movepool. Chople Berry helps it survive weaker fighting moves...yeah I didn't need to explain this I suppose. Iron Ball is useful if you need to make it as slow as possible to guarantee the Sandstorm, and can be flung for massive damage, but Crunch is generally more reliable. Air Balloon is a lesser alternative - it helps TTar avoid Earthquakes from partner Excadrill/Garchomp/Landorus, but can be popped rather easily, so watch out.