Name: Chi-Yu
Type: Dark/Fire
Stats: 80 (+25) / 55 (-25) / 80 / 135 / 120 / 100
Ability: Levitate
Full Movepool: Crunch, Facade, Fire Blast, Flamethrower, Heat Wave, Light Screen, Memento, Overheat, Protect, Psychic, Reflect, Rest, Ruination, Sleep Talk, Substitute, Taunt, Confuse Ray, Ember, Endure, Fire Spin, Flame Wheel, Hyper Beam, Mean Look, Scary Face, Spite, Sunny Day, Swagger, Hidden Power, Doomsday Clock.
Notable added moves: Hidden Power and Doomsday Clock.
Notable removed moves: Will-O-Wisp
Signature move: Ruination. Type: Dark. Accuracy: 95. PP: 16. Does equal damage to 1/2 target's current HP.
Role: Sun Stall breaker. This is a Pokemon that is already in Ubers in current Generation, but made a little worse offensively and much better defensively. It doesn,t have Specs or Scarf anymore, the Beads of Ruins is also removed, Nasty Plot doesn,t exist either. In exchange, it has higher bulk and immunity to Ground, which also means immunity to Spikes.
While Chi-Yu doesn,t have anything besides Sun to deal a lot of damage, it doesn,t really need too. Ruination + Taunt means that all defensive walls that would wall Chi-Yu or status it, can,t do it nearly as well. Crunch + Fire STAB is enough to threaten everything not named Ho-oh, Kyogre and Tyranitar. With Spikes (to which Chi-yu itself is immune), our fried Fish is an excellent breaker.
Chi Yu can also be used as a Reflect + Light Screen setter, suiciding with Memento in order for some teammate to boost and sweep.
Checks/Counters:
Kyogre is obviously the best one. It removes Sun and threatens Chi Yu with a OHKO.
Similarly, Tyranitar resists both STABs and removes the Sun boosts. Neither Tyranitar, nor Kyogre like taking a Ruination, but both can switch more than once.
The rare and currently D rank Houndoom happens to be immune to Fire and resistant to Dark. However, it doesn,t damage Chi Yu too much.
Blissey loses to Taunt, but will get to use Seismic Toss at least twice to weaken the fish.
Snorlax has it better due to directly threatening Chi-Yu with its strong Normal STAB, while having Thick Fat to take Fire moves.
Aerodactyl is a faster Mon that switches once in every move and OHKOs Chi-Yu.
Rayquaza doesn,t like taking Crunches, but even univested, takes 49,5 max and 2HKOs with Extreme Speed.
Funnily enough, even being weak to Dark, its possible for Latias to have a spread that at the same time outspeeds Chi Yu and lives 2 Timid Crunches. With Calm Mind and Recover, Latias can ignore Taunt and 2HKO with +1 Dragon Claw. Latios has it harder, but can still come into non Crunch and use Calm Mind to beat Chi Yu as long as it doesn,t get crit. Soul Dew really is a fantastic item.
Name: Leafeon.
Type: Grass.
Stats: 95 (+30) / 130 (+20) / 110 (-20) / 60 / 65 / 65 (-30)
Abilities: Leaf Guard and Chlorophyll
Custom ability: Leaf Guard: In Sun, at the end of each turn, all Status conditions are healed (Hydration clone, this ability should always have been Hydration clone instead of its current effect).
Full Movepool: Baton Pass, Body Slam, Curse, Detect, Energy Ball, Facade, Frustration, Giga Drain, Hidden Power, Iron Tail, Knock Off, Leaf Blade, Leech Seed, Reflect, Rest, Return, Roar, Shadow Ball, Sleep Talk, Substitute, Sword Dance, Synthesis, Toxic, Wish, Yawn, Aerial Ace, Attract, Bide, Bite, Bullet Seed, Charm, Covet, Dig, Double Kick, Double Team, Endure, Fake Tears, Flail, Flash, Focus Energy, Fury Cutter, Grass Whistle, Growl, Headbutt, Helping Hand, Hyper Beam, Magical Leaf, Mimic, Mud-Slap, Nature Power, Razor Leaf, Rock Smash, Sand Attack, Secret Power, Solar Beam, Strength, Sunny Day, Swagger, Swift, Tackle, Tail Whip, Take Down, Tickle, Sacred Sword. If I for some reason skipped some irrelevant move Eevee learned in Gen 3, pretend I didn,t.
Signature move: Sacred Sword. Type: Fight. Power: 90. Accuracy: 100. PP: 24. Ignores target's Stats changes.
Role: Leafeon is a physicall Chlorophyll sweeper that doesn,t use STAB moves. Instead, it uses 130 Attack and perfect Ghost + Fight (which ignores Snorlax's Curses btw) coverage, which at +2, threatens almost everything. Mons like Ho-oh, who would normally take Shadow Ball at +2, are dealt with Hyper Beam, which doesn,t recharge when KOing something. Leafeon can also use moves like Substitute or Synthesis in the last slot.
Boosting in this Tier is quite hard without being statused, so Leafeon has an alternate ability in Leaf Guard, which also allows to use Rest as long as Sun is there. However, with Leaf Guard, Leafeon will be outsped by almost the whole offensive meta. It does allow to use its support movepool of Wish, Knock Off and Roar.
Checks/Counters: Fast Kyogre variants switch in and OHKO with Ice Beam. They don,t like to take repeated Sacred Swords and Shadow Balls, but they still stop Leafeon at least once.
Same can be said about Rayquaza, who neutralizes Sun and use either Band HP Flying or special moves to kill Leafeon.
Fast Abomasnow variants also remove weather and kill Leafeon, but this one is weak to Scared Sword.
Groudon has titanic physical bulk and despite physical variants sometimes being set-up fodder for Leafeon, if it uses Overheat, Leafeon is gone.
You might have noticed Leafeon has reduced Speed now. This means its slower than Victreebel, who can use Hidden Power Fire or Sludge Bomb.
Steel types not weak to Sacred Sword, like Forretress, Skarmory, Metagross and Jirachi, are massive problems for Leafeon, they can use their STABs, status or some coverage (Fire Punch for example in the case of Jirachi) to deal big damage.
Armaldo too resists Normal and isn,t weak to Ghost or Fight, while having the Bug STAB and good physical bulk.
Some niche physical walls, like Weezing, can live any move at +2 and either kill or status back.
Finally, the Main problem Leafeon has is the pure Grass typing, which gives it 5 weaknesses. Setting up with them is not very easy and at +0 Leafeon doesn,t threaten much.
Name: Octillery
Type: Water/Bug
Stats: 95 (+20) / 45 (-60) / 95 (+20) / 105 / 95 (+20) / 45
Abilities: Suction Cups and Poison Heal.
New moves: Signal Beam, Energy Ball, Fish and Dip.
Signature move: Octazooka. Power: 65. Accuracy: 90. PP: 24. Power doubles in Sun instead of being halved.
Role: Bulky Water that abuses Sun and opposing Toxic. Octazooka now is a good move that deals a lot of damage, coming of Octillery's decent Special Attack. The octopus has great coverage and also learns Thunder Wave. With Octillery existing, Blissey and other defensive Mons can,t SPAM Toxic anymore, since Octillery will heal from it if it predicts right. With Grass types being improved, Octillery is not weak to the type anymore and also resists Ground. The price for that is being weak to Flying and Rock, while not resisting Fire, which in Sun might be problematic. Despite still being slow, Octillery now has a respectable bulk.
Checks and counters:
Even with Thunder Wave and Ice Beam, Refresh variants of the Latis win vs Octillery almost always.
If Rayquaza avoids the above 2 moves, with Band it can kill Octillery with HP Flying.
Same can be said about Ho-oh, though it has it much harder due to being weak to STAB Octazooka.
Blissey obviously walls Octillery, though it can,t use Toxic on it.
Kyogre is weak to Energy Ball and doesn,t like Thunder Wave, but removes Rain and uses Thunder.
Gyarados also doesn,t like Thunder Wave, but easily takes any move Octillery can throw and uses HP Flying.
Octillery has serious 4 slot syndrome. It can,t have Restalk, Octazooka, Fire Blast, Ice Beam, Energy Ball, Fish and Dip, Protect and Thunder Wave at the same time, so you can use that to your advantage.
