Surprised with all of the ban posts, but i can see it as you guys usually lose to something and cry about it on here i mean discuss it here.
Aside from that, im on the fence with banning it, but im gonna say Do not ban.
One thing i noticed is that you guys say it has trouble with its amazing coverage. Heres the problem, it can only run four moves. These moves arent that powerful even off of STAB, as most of his moves do less than 100 BP. Now, you might be thinking, LO increases it. Yes, it does, but the residual damage is bad. The usual set it runs is Ice Beam,GShot,Hydro and Ice Beam. Empoleon, Chansey, Keldeo, Scarf Lando, etc. all can revenge kill or counter it.
Low Kick? now he has trouble with other mons. His coverage is good, no doubt, but it isnt amazing.
It's not just the coverage, it's the fact that he could be running ANYTHING. Fully physical, fully special, mixed, HP Fire, HP Grass, Extrasensory, etc. It is hard to know what it is carrying and while it may give up some coverage, it can switch moves to hit every single pokemon that checks a different set.
its speed is high but gets destroyed by prio and scarfers, both common on HO teams. Often having to sack a poke to get the scarfer in, and then greninja just switches out.
Stall can take it on with TWave and/or SpDef walls.
Low kick+Gunk shot mixed sets or fully physical sets wreck SpDef walls. TWave user? Don't stay in with your fast sweeper on it, that's just bad playing...
But, i want to really go in depth. The reason why you guys want him to be banned is cause of its coverage and speed. Sure, you need to give up a mon in most cases, but with almost every playstyle there is something to take out Greninja. For the better good, if we keep Greninja unbanned also, i honestly think the meta wont be so crappy as it was before. When people adapt to Greninja (which in most cases i didnt see) there will be a different perspective.
Greninja cant switch into attacks either, he works as a revenge killer. His fraility makes him a non ubers mon.
Greninja may be paper but he destroyes the OU meta. Saying something is Non-Ubers because of frailty here doesn't work for what he is. He is a fast sweeper. It may be frail but it MORE THAN MAKES up for that with its pure power. Also it may not be good in Ubers but it is too good for OU, often getting 1+ kills and forcing switches and momentum changes.
The guy isnt even as broken, with a not so impressive attack stats and horrible defensive stats. With easy ways to threaten out of the field, like Prio, Scarfers, etc. this guy can actually be taken out. Just dont ban him, cause in the future the meta will be worse when greninja will be banned cause you guys obviously want a ban.
He can be taken out but only after sacking off a pokemon...