Gigalith@Assault Vest
Sand Force
252 HP / 252 At / 4 SpD
~ Earthquake
~ Stone Edge
~ Iron Head
~ Explosion/Superpower
Holy hell, why is this not a thing yet!? 6_9 Gigalith has a mighty 135 At stat and gets three of his moves boosted in Sand, so free Life Orb damage right there, on top of the SpD bonus from Assault Vest AND being a Rock type! And his SpD isn't even that bad to start! His defenses are 85/130/80. So what we end up with is an interesting amalgamation of AV Rhyperior and Regirock, boasting far better special bulk than Rhyperior with superior mono-Rock typing and much better At than Regirock, with Sandstorm pulling a double buff. The downside is yeah, he's outspeeding absolutely nobody with 25 Spd but who cares? This is the definition of a bulky pivot, able to switch into attacks like crazy and threaten a ton of things.
252+ Atk Sand Force Gigalith Stone Edge vs. 252 HP / 0 Def Latias in sand: 262-309 (71.97 - 84.89%) -- guaranteed 2HKO after weather
+1 4 SpA Latias Dragon Pulse vs. +1 252 HP / 0 SpD Gigalith in sand: 94-112 (25.13 - 29.94%) -- guaranteed 4HKO
-1 252+ Atk Sand Force Gigalith Stone Edge vs. 88 HP / 4 Def Gyarados in sand: 390-458 (110.48 - 129.74%) -- guaranteed OHKO Intimidate? Lol, nice try.
+1 248 Atk Gyarados Waterfall vs. 252 HP / 0 Def Gigalith: 306-360 (81.81 - 96.25%) -- guaranteed 2HKO Can still switch into a Dragon Dance and OHKO from full.
252+ Atk Sand Force Gigalith Stone Edge vs. 0 HP / 4 Def Kyurem-B in sand: 476-564 (121.73 - 144.24%) -- guaranteed OHKO
252 Atk Choice Band Kyurem-B Outrage vs. 252 HP / 0 Def Gigalith: 288-339 (77 - 90.64%) -- guaranteed 2HKO
56+ SpA Rotom-W Hydro Pump vs. +1 252 HP / 0 SpD Gigalith in sand: 186-222 (49.73 - 59.35%) -- 99.61% chance to 2HKO
252+ Atk Sand Force Gigalith Stone Edge vs. 248 HP / 0 Def Rotom-W in sand: 226-267 (74.58 - 88.11%) -- 6.25% chance to OHKO after Stealth Rock
252+ Atk Gigalith Explosion vs. 248 HP / 0 Def Rotom-W: 290-342 (95.7 - 112.87%) -- 75% chance to OHKO
252+ Atk Gigalith Explosion vs. 248 HP / 0 Def Rotom-W: 290-342 (95.7 - 112.87%) -- guaranteed OHKO after Stealth Rock ---- If you are at about 75% health Stone Edge has to crit to OHKO, but an Explosion will do it if you play your cards right.
+2 252 Atk Sky Plate Talon Flame Brave Bird vs. 252 HP / 0 Def Gigalith: 136-161 (36.36 - 43.04%) -- guaranteed 3HKO -- so you can safely switch into a +2 Brave Bird and still come out on top. I think you know how the attack will look lol.
252+ Atk Sand Force Gigalith Earthquake vs. 252 HP / 0 Def Aegeslash Shield Form in sand: 226-266 (69.75 - 82.09%) -- guaranteed 2HKO
252+ Atk Sand Force Gigalith Earthquake vs. 252 HP / 0 Def Aegeslash Sword Form in sand: 554-654 (170.98 - 201.85%) -- guaranteed OHKO
252+ Atk Aegeslash Iron Head vs. 252 HP / 0 Def Gigalith: 254-302 (67.91 - 80.74%) -- guaranteed 2HKO
252+ Atk Aegeslash Sacred Sword vs. 252 HP / 0 Def Gigalith: 192-226 (51.33 - 60.42%) -- guaranteed 2HKO
252 SpA Choice Specs Keldeo Hydro Pump vs. +1 252 HP / 0 SpD Gigalith in sand: 314-372 (83.95 - 99.46%) -- guaranteed 2HKO Oooh, just
barely.
And you know what I didn't notice until the Keldeo calcs? Gigalith apparently had 70 SpD back in Gen V, which got buffed to 80, which the calculator didn't account for the time and I'm not doing those over again but yeah, just a bit bulkier specially than the calcs indicate. It has really good bulk, I seriously want to test this guy out with a Smooth Rock Hippowdon, he could be beast.