Special Tyranitar
Tyranitar @ Weakness Policy
Ability: Sand Stream
EVs: 156 HP / 100 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Rock Polish
- Ice Beam
- Dark Pulse
- Fire Blast/Earth Power/Hydro Pump lol
This Tyranitar build showcases how it can lure in the Krook (thinking it's rocks with Physical dual STAB),
shrug off its Intimidation,
tank an Earthquake, and
OHKO back with Ice Beam all in one turn.
252 Atk Krookodile Earthquake vs. 156 HP / 0 Def Tyranitar: 282-332 (74.2 - 87.3%) -- guaranteed 2HKO
after Stealth Rock
+2 100 SpA Tyranitar Ice Beam vs. 0 HP / 4 SpD Krookodile: 366-432 (110.5 - 130.5%) -- guaranteed OHKO
What sets it apart from Rhyperior's similar set above is that it outspeeds and incinerates a few more threats after a rock polish...including Scarf Heracross most notably, and it's old nemesis, defensive Skarm.
+2 100 SpA Tyranitar Fire Blast vs. 0 HP / 4+ SpD Heracross: 318-376 (105.6 - 124.9%) -- guaranteed OHKO
+2 100 SpA Tyranitar Fire Blast vs. 252 HP / 0 SpD Skarmory: 450-530 (134.7 - 158.6%) -- guaranteed OHKO
Furthermore, it acts as nice check to SpD Jirachi and Slowking, two of Krookodile's most common teammates, given enough chip and/or flinches so it's not dead weight.
+2 100 SpA Tyranitar Dark Pulse vs. 252 HP / 252+ SpD Jirachi: 264-312 (65.3 - 77.2%) -- guaranteed 2HKO after Leftovers recovery
+2 100 SpA Tyranitar Dark Pulse vs. 252 HP / 0 SpD Slowking: 338-398 (85.7 - 101%) -- 6.3% chance to OHKO
+2 100 SpA Tyranitar Dark Pulse vs. 252 HP / 252+ SpD Assault Vest Slowking: 168-198 (42.6 - 50.2%) -- 32.4% chance to 2HKO after sandstorm damage
You could also opt for Earth Power or Hydro in case you need to hit Tentacruel, Incin, or scarf Darm (this set also outspeeds it after R.P.) for more damage.