Discussed Item : Protean Greninja
Course of action : Testing
Justification :
1. Protean Greninja might be a big thread to balanced teams, as it was mentioned, stall teams and hyper offense teams could deal with it. With Keldeo being in the centre of the meta, and it is basicly used on almost every single team on higher ranks, it is a pretty simple counter to Greninja. Also, as it was mentioned, the most used tanks, such as Ferrothorn or Rotom-Wash can check it is moveset, and it can be predicted after the first move.
2.
Getting back to the game since Protean Greninja ban, I could see a lot of Weavile in the ranked mode. Weavile is just one of the few pokemons in the current meta that can out speed Greninja, and Ohko it. Other than that, Keldeo, Scarf Landorus can outdpeed and kill it. None the less, the introduction of all mega pokemons, we got Mega Alakazam, an extremely fast and strong pokemon, just like we got Mega Manectric and Mega Lopunny. They are all faster and can easily kill Greninja.
3.
Stall teams. They are most likely can afford to defog, and check it is moveset, that lead to advantage over your opponent. Even if the enemy Greninja has HP Grass, and kills Rotom - Wash, you will have the advantage, due to knowing, or atleast having a good guess of it is moveset
Hyper offense teams. In these teams, priority moves are necesarry. They are there to deal with faster pokemons, and Greninja isnt an exception. +2 Bisharp can easily 1 hit ko Greninja. These teams often include Keldeo, so it is another solution to deal with it.