The Pokémon Company via Bulbapedia
The rare black and white stone is the key to powering up some of the new Pokémon
Pokémon Go finally has begun to add Pokémon from the Unova region. For some of the evolved forms of this region’s Pokémon, players will need Unova Stones, a rare evolution item, similar to the Sinnoh Stone that released before.
Unova Stones work like other evolution items. A handful of evolutions will require them, in addition to candy, to evolve specific ‘mons.
How do you get Unova Stones?
Currently, the only way to get Unova Stones are through completing weekly Field Research Breakthroughs. After turning in seven Field Research Tasks on different days, you can claim the stamps for a Research Breakthrough. In addition to the special Pokémon that will spawn, there is a chance to get an Unova Stone.
Note that it’s not a high chance to drop, so it might be awhile before you get an Unova Stone.
What uses Unova Stones to evolve?
Currently these are the only Pokémon that uses the Unova Stone:
- Litwick → Lampent → Chandelure
- Pansear → Simisear
- Pansage → Simisage
- Panpour → Simipour
The three monkeys, Pansear, Pansage, and Panpour, all need 50 candy, in addition to the Unova Stone, to evolve. Lampent needs 100 candy and Sinnoh Stone to evolve.
More Unova Pokémon will likely need this stone to evolve as they get released.
What should I use my Unova Stones on?
Out of the four options above, Chandelure is the strongest. The fire- and ghost-type Pokémon is quite a good ghost-type attacker, and some analysis noting that it’s the second best ghost-type attacker in the game, only falling to Origin Forme Giratina.
read more at https://www.polygon.com/ by Julia Lee