1
Anat (Greninja-Ash) (f) @ Choice Scarf
Ability: Battle Bond
EVs: 252 Atk / 252 Spe / 4 HP
Jolly Nature
- Hydro Pump
- Dark Pulse
- Ice Beam
- Water Shuriken
ANAT (f) Semitic Mythology
Possibly derived from a Semitic root meaning "water spring". Anat was a goddess of fertility, hunting and war worshipped by the Semitic peoples of the Levant. She was the sister and consort of the god Hadad.
Gerninja is one of the most versatile mons in OU I have ever seen. It's ability Protean gives excellent mix ups and Ash-Greninja gives a second mega. Because Greninja has 377 Speed, adding a Scarf isn't necessary, but it gets the job done when you need a revenge killer. Greninja and Lando-T are an excellent core, being that they resist the other's super effects.
2
Eun-Ji (Landorus-Therian) @ Life Orb
Ability: Intimidate
EVs: 252 Atk / 252 Spe / 4 SpD
Adamant Nature
- Earthquake
- Rock Slide / Stone Edge
- Knock Off
- U-Turn / Defog
EUN-JI f Korean
From Sino-Korean 恩 (eun) meaning "kindness, mercy, charity" combined with 地 (ji) meaning "earth, soil, ground".
Lando-T is an awesome mon. It does get murdered by ice along with Gliscor, but that's why Greninja is there to tank the resistance. Sadly, Lando-T would replace your Garchomp because Lando-T and Greninja have better synergy.
3
Cináed (Heatran) @ Air Balloon
Ability: Flash Fire
EVs: 252 HP / 252 Def / 4 Spe
- Earth Power
- Ancient Power / Rock Slide
- Flash Cannon
- Flamethrower / Heat Wave
CINÁED m Scottish, Irish
Means "born of fire" in Gaelic.
Heatran is not all that fast, so you have to take advantage of Flash Fire. Switch in after Celesteela tanks a Flamethrower and most of the time you'll get it. I've taken up a defensive outlook for this Heatran so that it has the most health it can after Air Balloon pops, else it gets bodied by Earthquakes. But because it has Air Balloon, it is viable to switch in and KO that Earthquake mon. I picked Ancient Power over Rock Slide and Stone Edge because of that 10% all stat boost. It helps when you get it.
4
Lata (Ferrothorn) (f) @ Leftovers/Rocky Helmet
Ability: Iron Barbs
EVs: 120 HP / 252 Atk / 8 Def / 128 SpD
Impish/Brave Nature
- Spikes
- Leech Seed
- Power Whip
- Gyro Ball
LATA f Indian, Hindi, Marathi
Means "vine, creeping plant" in Sanskrit.
As Staka~ had said, Ferrothorn is AWESOME for set up. It's bulky but gets bodied by fire, which is another excellent core with Heatran's Flash Fire.
5
Hoshiko (Jirachi) @ Normalium Z
Ability: Serene Grace
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Lucky Chant
- Zen Headbutt
- Ice Punch
- Iron Head
Hoshiko f Japanese
From Japanese 星 (hoshi) meaning "star" and 子 (ko) meaning "child"
I noticed that you are missing two important pieces to a team, a Z-Crystal and a Mega! So I advise Jirachi as your Z-Crystal. Normal 60% flinch, but Z-Lucky Chant gives x2 Evasion, so the likely hood of them actually hitting you is basically zero. It does die quickly to Earthquakes, but it's good to remember which mon on the other team has a potential Earthquake to be wary on switch in!
6
Tanith (Gyarados-Mega) @ Gyaradosite
Ability: Moxie --> Mold Breaker
EVs: 252 Atk / 252 Spe / 4 SpD
Jolly Nature
- Dragon Dance
- Waterfall
- Ice Fang / Crunch
- Earthquake
TANITH f Semitic Mythology
Derived from Semitic roots meaning "serpent lady". This was the name of the Phoenician goddess of love, fertility, the moon and the stars. She was particularly associated with the city of Carthage, being the consort of Ba'al Hammon.
Now, Gyarados holds a very special place in my heart. It was my first shiny in Gold, and an absolute sweeper with Dragon Dance. With it's raised speed and Moxie boost, it just... keeps... going. But because you need a Mega, I decided that Mega Gyarados needed MORE strength. But wait to Mega so that you can get the boosts, then wreck havoc. But because Gyarados is x4 weak to electricity, it's a weak core with Lando-T. And because people will see Gyarados' x4 weakness, they will switch. Free Dragon Dance! Gyarados is an excellent lead.
Anat (Greninja) - Kept
Eun-Ji (Lando-T - Switch for Garchomp
Cináed (Heatran) - Kept
Lata (Ferrothorn) - Switch for Celesteela
Hoshiko (Jirachi) - New
Tanith (Gyarados) - New
This is taking your team as a skeleton, I kept Heatran and Gerninja and passed their cores into it. Then I added a Z-Crystal and a Mega. I do believe that this team will truly become Finite.