So I saw this wasn't a thing. Talked to Finch; now I'm making it a thing. Anyway, to start things off: More serious but kinda fun Spoiler Celebi @ Leftovers Trait: Natural Cure EVs: 248 HP / 148 Def / 108 Spd Bold Nature (+Def, -Atk) - Recover - Nasty Plot - Baton Pass - Giga Drain Landorus (M) @ Life Orb Trait: Sheer Force EVs: 252 SAtk / 4 SDef / 252 Spd Timid Nature (+Spd, -Atk) - Sludge Wave / Rock Polish - Earth Power - Focus Blast - Rock Slide This is definitely one of my favorite cores this gen. I talked about it a bit in the suspect discussion but Celebi switches into Keldeo, Rotom-W (Mega) Slowbro, Slowking, Azumarill and other mons that Lando doesn't like dealing with 1 on 1 and either scares them away with the threat of Giga Drain or the ability to set up in their faces. Because Celebi forces switches into these mons, just clicking Baton Pass is a viable option as mons like Heatran, Charizard X and Y, like to switch into Celebi and Landorus just cleanly picks them off, and Baton Pass helps keep momentum up. Nasty passing makes Landorus even more of a threat and once the opponent's checks are weakened (or against stallier teams), it usually just wins games. Celebi is EV'd to maximize physical bulk as well as be able to outspeed and avoid Pursuit/Knock Off from Jolly Bisharp. Rock Polish can be used on Lando (as well as a bulkier set), but the coverage is optimized for teamwork with Celebi. The EVs are rather self explanatory. Less serious but exponentially more fun and/or Spoiler Altaria @ Altarianite Ability: Natural Cure EVs: 248 HP / 136 Def / 96 SpD / 28 Spe Impish Nature - Dragon Dance - Roost - Return - Cotton Guard Terrakion @ Life Orb Trait: Justified EVs: 252 Atk / 4 SAtk / 252 Spd IVs: 30 HP / 30 Def Naive Nature (+Spd, -SDef) - Close Combat - Stone Edge - Poison Jab - Hidden Power [Ice] Latios (M) @ Life Orb Trait: Levitate EVs: 24 Atk / 232 SAtk / 252 Spd IVs: 29 HP / 30 Atk / 30 SAtk / 30 Spd Naive Nature (+Spd, -SDef) - Draco Meteor - Psyshock - Hidden Power [Fire] - Earthquake Basically this is all about the lures. With Mega Metagross gone this Altaria set has a lot more room to wreck havoc in OU. Terrakion punches holes in things like Rotom-W, Heatran, Ferrothorn, Skarmory and weakens or gets rid of them for Altaria. Hidden Power Ice is there to lure in Gliscor and Landorus-T to weaken them so Altaria can sweep late game. Latios beats Mega Venusaur, Rotom-W, hurts Skarmory, and dents Mega Sableye, hopefully to the point where Mega Altaria can come in and just kill it (uninvested does 63-75%), and lures in Heatran. Standard Sp.D Heatran loses 100% of the time to 24 attack Latios after Stealth Rocks. The EVs should be fairly self explanatory, except for Mega Altaria. I just picked a random spread that I saw and it works. I'm sure it could be optimized better. The only other time I've seen this being used it was 252 HP/96 Atk/160 Spd and I'm not even sure why it was used. Either Latios or Terrakion can work in this position. It's mostly about the team. They both lure different Pokemon that Mega Alt doesn't like seeing. You could run Bulky DD with Refresh/Heal Bell in order to beat Mega Sableye 100% of the time. Cotton Guard sweeps are more fun though. The EVs are also largely variable. You can set those to fit the team a little better. Defog is a viable option on Latios but you'd probably need to get rid of Psyshock. In that case it could be more helpful to run Zen Headbutt on Terrakion as it is more reliable in hitting Mega Venusaur than Stone Edge. You could also opt to use a less restricted Mega Altaria set, but where's the fun in that?