Pokemon: Cubchoo
New Typing: Ice
New Abilities: Filter / Snow Cloak / HA: Sturdy
New Stats: 55 HP / 40 Atk (-30) / 55 Def (+15) / 90 SpA (+30) / 55 SpD (+15) / 10 Spe (-30)
Removed Moves: Play Nice
New Moves: Slack Off
Flavor: In Alola, it migrated to Mt. Lanakila and found it colder than its habitat in Unova. Its nose ran more and it eventually encased itself inside a solid ice made from its own snot. It's still alive though!
Pokemon: Beartic
New Typing: Ice/Fighting
New Abilities: No Guard / Snow Cloak / HA: Refridgerate
New Stats: 95 HP / 70 Atk / 95 Def (+15) / 130 SpA / 95 SpD (+15) / 20 Spe (-30) [attack and special attack swapped]
Removed Moves: Play Nice, Aqua Jet
New Moves: Focus Blast, Slack Off
Flavor: Once it evolved, it broke out of its ice crystal. However, it still uses it as a form of protection.
Since other people are doing two lines, I wanted to join the Chandelure wagon.
Pokemon: Litwick
New Typing: Ghost
New Abilities: Cursed Body / Frisk / HA: Aftermath
New Stats: 80 HP (+30) / 20 Atk (-10) / 55 Def / 55 SpA (-10) / 55 SpD / 10 Spe (-10)
Removed Moves: Ember, Smog, Fire Spin, Will-o-Wisp, Flame Burst, Inferno, Overheat, Sunny Day, Flamethrower, Fire Blast, Flame Charge, Incinerate, Heat Wave (13)
New Moves: Bubble, Hypnosis, Lick, Grudge (4)
Flavor: Litwick was being imported to Alola on a ship. However, the ship sunk and the Litwick were lost. They learned how to adapt to their new undersea home, but Litwick's 'wick' is no longer 'lit'.
Pokemon: Lampent
New Typing: Ghost/Water
New Abilities: Cursed Body / Levitate / HA: Aftermath
New Stats: 110 HP (+50) / 40 Atk / 60 Def / 75 SpA (-20) / 60 SpD / 25 Spe (-30)
Removed Moves: Ember, Smog, Fire Spin, Flame Burst, Inferno, Overheat, Sunny Day, Flamethrower, Fire Blast, Flame Charge, Incinerate, Heat Wave (12)
New Moves: Bubble, Hypnosis, Whirlpool, Water Pulse, Hydro Pump, Rain Dance, Ice Beam, Blizzard, Lick, Grudge, Water Spout, Recover (12)
Flavor: As Lampent's fire is contained within glass, it is able to keep its flame going. However, the water around it keeps it from using any fire attacks, as the water extinguishes its flames. The water around it also makes it afraid of moving.
Pokemon: Chandelure
New Typing: Ghost/Water
New Abilities: Cursed Body / Levitate / HA: Aftermath
New Stats: 140 HP (+80) / 55 Atk / 90 Def / 105 SpA (-40) / 90 SpA / 40 Spe (-40)
Removed Moves: Ember, Smog, Fire Spin, Flame Burst, Inferno, Overheat, Sunny Day, Flamethrower, Fire Blast, Flame Charge, Incinerate, Heat Wave (12)
New Moves: Bubble, Hypnosis, Whirlpool, Water Pulse, Hydro Pump, Rain Dance, Ice Beam, Blizzard, Lick, Grudge, Water Spout, Recover (12)
Flavor: Chandelure's flames were extinguished. However, water now flows through it. You just can't tell when its below water... Water jumps between its arms, and people use it for show. When it gets excited, water fires out of its 'head'. Everything around it gets wet as a result, which makes Chandelure happy!