>>29095817252+ Atk Choice Band Tyrantrum Head Smash vs. 248 HP / 252+ Def Rotom-W: 262-310 (86.4 - 102.3%) -- 18.8% chance to OHKO
252+ Atk Choice Band Tyrantrum Fire Fang vs. 252 HP / 252+ Def Ferrothorn: 268-316 (76.1 - 89.7%) -- guaranteed 2HKO after Leftovers recovery
252+ Atk Choice Band Tyrantrum Head Smash vs. 244 HP / 8 Def Gliscor: 313-370 (88.9 - 105.1%) -- 31.3% chance to OHKO
252+ Atk Choice Band Tyrantrum Head Smash vs. 252 HP / 252+ Def Skarmory: 219-258 (65.5 - 77.2%) -- guaranteed 2HKO after Leftovers recovery
252+ Atk Choice Band Tyrantrum Earthquake vs. 252 HP / 252 Def Aegislash-Shield: 204-240 (62.9 - 74%) -- guaranteed 2HKO after Leftovers recovery
252+ Atk Choice Band Tyrantrum Earthquake vs. 248 HP / 0 Def Mega Mawile: 282-334 (93 - 110.2%) -- 56.3% chance to OHKO
252+ Atk Choice Band Tyrantrum Fire Fang vs. 252 HP / 4 Def Klefki: 240-284 (75.4 - 89.3%) -- guaranteed 2HKO after Leftovers recovery
252+ Atk Choice Band Tyrantrum Head Smash vs. 252 HP / 252+ Def Suicune: 252-297 (62.3 - 73.5%) -- guaranteed 2HKO after Leftovers recovery
The only things that survive it with some luck is fully hp and def ev'd bold mega Slowbro and Hippowdon and again it depends on rolls
252+ Atk Choice Band Tyrantrum Head Smash vs. 252 HP / 252+ Def Mega Slowbro: 180-213 (45.6 - 54%) -- 46.9% chance to 2HKO
252+ Atk Choice Band Tyrantrum Outrage vs. 252 HP / 252+ Def Hippowdon: 196-232 (46.6 - 55.2%) -- 14.1% chance to 2HKO after Leftovers recovery
Oh and Dialga Kinda if fully Ev'd to be defensive
252+ Atk Choice Band Tyrantrum Outrage vs. 244 HP / 252+ Def Dialga: 195-231 (48.5 - 57.4%) -- 93.4% chance to 2HKO