Not the best demonstrations but here is a demonstration at work:
http://replay.pokemonshowdown.com/ou-195368040
I find its bulk does let it down tho (its 2hko'd by bisharp), but give it screens or memento, even sub pass and there is not much that wants to switch into it at +2
bunch of calcs:
Highly relevant SD calcs:
+1 252+ Atk Life Orb Lucario Iron Tail vs. 252 HP / 252 Def Landorus-T: 265-312 (69.3 - 81.6%)
+1 252+ Atk Life Orb Lucario Extreme Speed vs. 4 HP / 0 Def Landorus-T: 182-214 (56.8 - 66.8%)
+2 252+ Atk Life Orb Lucario Extreme Speed vs. 0 HP / 4 Def Talonflame: 291-343 (97.9 - 115.4%)
+2 252+ Atk Life Orb Lucario Bullet Punch vs. 4 HP / 0 Def Gengar: 251-296 (95.8 - 112.9%)
+2 252+ Atk Life Orb Lucario Bullet Punch vs. 0 HP / 0 Def Terrakion: 361-429 (111.7 - 132.8%)
+2 252+ Atk Life Orb Lucario Extreme Speed vs. 0 HP / 0 Def Garchomp: 231-273 (64.7 - 76.4%)
+2 252+ Atk Life Orb Lucario Extreme Speed vs. 0 HP / 0 Def Keldeo: 242-285 (74.9 - 88.2%)
+2 252+ Atk Life Orb Lucario Extreme Speed vs. 4 HP / 0 Def Greninja: 307-361 (107.3 - 126.2%)
252+ Atk Life Orb Lucario Iron Tail vs. 252 HP / 252+ Def Unaware Clefable: 367-432 (93.1 - 109.6%)
+2 252+ Atk Life Orb Lucario Iron Tail vs. 252 HP / 240+ Def Mega Venusaur: 261-308 (71.7 - 84.6%)
+2 252+ Atk Life Orb Lucario Iron Tail vs. 244 HP / 28+ Def Gliscor: 304-359 (86.3 - 101.9%)
252+ Atk Life Orb Lucario Extreme Speed vs. 0 HP / 4 Def Beedrill: 224-264 (82.6 - 97.4%)
+2 252+ Atk Life Orb Lucario Extreme Speed vs. 4 HP / 0 Def Lopunny: 234-276 (86 - 101.4%)
+2 252+ Atk Life Orb Lucario Iron Tail vs. 252 HP / 252+ Def MegaSableye: 255-302 (83.8 - 99.3%)
+2 252+ Atk Life Orb Lucario Extreme Speed vs. 4 HP / 0 Def Sceptile: 279-330 (98.9 - 117%)
+2 252+ Atk Life Orb Lucario Extreme Speed vs. 4 HP / 0 Def Latias: 242-285 (80.1 - 94.3%)
+2 252+ Atk Life Orb Lucario Close Combat vs. 252 HP / 252+ Def Skarmory: 282-333 (84.4 - 99.7%)
+2 252+ Atk Life Orb Lucario Crunch vs. 252 HP / 252+ Def Slowbro: 299-354 (75.8 - 89.8%)
+2 252+ Atk Life Orb Lucario Crunch vs. 252 HP / 32 Def Gourgeist-Small: 364-429 (115.9 - 136.6%)
+2 252+ Atk Life Orb Lucario Crunch vs. 252 HP / 252+ Def Gourgeist-Super: 278-328 (74.3 - 87.7%)
+2 252+ Atk Life Orb Lucario Crunch vs. 252 HP / 0 Def Mew: 442-523 (109.4 - 129.4%)
+2 252+ Atk Life Orb Lucario Iron Tail vs. 252 HP / 0 Def Mew: 415-489 (102.7 - 121%)