Shinobi_Warrior : I've actually used Gigalith and it is actually a fairly good PKMN in the sand. It has good defensive stats and in addition to that, its Stone Edge hits harder than Choice Band Tyranitar's if you use the LO or CB variant. The AV set is pretty strong too and has powerful coverage in EQ to complete EdgeQuake. Sadly, it's is useless / dead weight outside of Sand which is why I don't use it often.
I'ma post probably one of the most underrated sets in the current metagame; behold as you witness,
LANDSHARK 2.0!!!
Garchomp @ Garchompite | Sand Force via Rough Skin
Naive | 4 HP / 252 Atk / 252 Spe | Max IVs
Outrage | Earthquake | Fire Blast | Swords Dance
Seriously, this thing is on my most powerful team and it defines it. If you thought ChainChomp was a master at luring in everything and 2HKOing things with Fire Blast, meet this thing: Mega Landshark. Yup, it doesn't only 2HKO things, it
OHKOes them. By sharpening it blades as sharp as glass, it can now completely destroy Ferrothorn, Forretress, Mega Scizor, Skarmory, Mega Pinsir, and now it can force Mega Charizard Y out and it now basically gets a +1 SpA! Now, face the wrath of the two STAB moves, Outrage and Earthquake. The former makes this evolved specimen of landsharks a monster by OHKOing almost the whole unresisted tier and the latter hits even harder when paired with the might Hippowdon or Tyranitar. Combine this thing with Swords Dance and it's unstoppable! One may say: "oh no! I can't mega evolve to OHKO something because my speed is reduced!". No worries, because Garchomp's base Speed stays 102 on the turn it mega evolves, but it is 311 after. 311 isn't a bad speed anyways, or is it? Garchomp's bulk lets it survive a wicked array of attacks which would force someone to think that they should switch out.
252+ Atk Choice Band Talonflame Brave Bird vs. 4 HP / 0 Def Mega Garchomp: 208-246 (58.1 - 68.7%) -- guaranteed 2HKO
252+ Atk Technician Mega Scizor Bullet Punch vs. 4 HP / 0 Def Mega Garchomp: 106-126 (29.6 - 35.1%) -- 16.3% chance to 3HKO
252+ SpA Mega Alakazam Dazzling Gleam vs. 4 HP / 0- SpD Mega Garchomp: 280-330 (78.2 - 92.1%) -- guaranteed 2HKO
252+ Atk Life Orb Mamoswine Ice Shard vs. 0 HP / 0 Def Mega Garchomp: 333-395 (93.2 - 110.6%) -- 62.5% chance to OHKO
0 SpA Choice Scarf Tyranitar Ice Beam vs. 0 HP / 0- SpD Mega Garchomp: 292-344 (81.7 - 96.3%) -- guaranteed 2HKO
252 Atk Aerilate Mega Pinsir Return vs. 0 HP / 0 Def Mega Garchomp: 220-259 (61.6 - 72.5%) -- guaranteed 2HKO
4 SpA Pixilate Sylveon Hyper Voice vs. 0 HP / 0- SpD Mega Garchomp: 320-378 (89.6 - 105.8%) -- 31.3% chance to OHKO
This much SWAG with the power of the true epic donkey shark, you will laugh so hard as your opponent switches into a +2 Earthquake in the Sand thinking they could survive because they "resisted the hit". Teammates? A true landshark doesn't swim in groups, but if you really want to make it a beast, there are two things you need: Sticky Web and/or sand support. The sand is what makes it able to sweep without set-up as it makes its Earthquake have 200 Base Power after STAB which strikes fear into everything, even the Azumarill and Sylveon that want to come into your Outrage thinking they can survive an EQ next turn. The sheer force of this thing strikes fear into everyone's hearts piercing them with their atrium and ventricles inside out. Look at these calculations at +2 and one will see why this thing is king kong!
+2 252 Atk Sand Force Mega Garchomp Earthquake vs. 252 HP / 252+ Def Sylveon in Sand: 487-574 (123.6 - 145.6%) -- guaranteed OHKO
Doom
+2 252 Atk Sand Force Mega Garchomp Earthquake vs. 252 HP / 252+ Def Hippowdon in Sand: 333-393 (79.2 - 93.5%) -- guaranteed 2HKO after Leftovers recovery
Muahaha
+2 252 Atk Mega Garchomp Outrage vs. 252 HP / 184+ Def Gliscor: 310-366 (87.5 - 103.3%) -- 25% chance to OHKO
Destroy
+2 252 Atk Sand Force Mega Garchomp Earthquake vs. 252 HP / 252+ Def Mega Venusaur in Sand: 322-381 (88.4 - 104.6%) -- guaranteed OHKO after Stealth Rock
Destruction!
The true ChainChomp, the destroyer of stall, the survivor even in the blizzards, the sharpest and most epic looking creature; face the mighty flames of the one who are yet to face its wrath in OSL, one must conquer the the beast to master...the true shark of legend!!!
Spoiler: Combining Mega Swords Dance Lure Garchomp with LO Sharpedo strengthens Mega Garchomp's power to extraordinary levels as Sharpedo removes its counters with Destiny Bond...