Frogadier @ Life Orb
Ability: Protean
Timid 252 SpA/252 Spe/6 HP
-Surf/Hydro Pump
-Ice Beam
-Dark Pulse
-Grass Knot/HP Fire
It plays exactly like Greninja and has almost the same special movepool, it faces some competition from Samurott but its meant to be played out as a late game cleaner.
I've looked into Frogadier as well, it's interesting but I'm not so sure about its chances. 97 Speed is nice, and Protean + Life Orb give it powerful coverage despite a meager 83 base SpA. However, when you look at its pathetic 54/52/56 defenses it can't switch into anything and it is easily revenged. It also lacks Spikes, which is a huge letdown (although it still has TSpikes).
While we're on the topic of NFE's, how about everyone's favorite:
Sliggoo almost looks too cute for NU, but with Eviolite it promises to be one of the bulkiest special walls in the tier. 68/53/113 are decent physically with the Eviolite boost, and with max investment Sliggo reaches an astronomical
535 SpD. It plays just like Goodra in OU. It has the same 83 base SpA as Frogadier, and a wide movepool including BoltBeam, Sludge Wave, Draco Meteor, and Muddy Water. Just to show off how incredibly bulky this thing is:
252 SpA Life Orb Protean Frogadier Ice Beam vs. 252 HP / 248+ SpD Eviolite Sliggoo: 127-151 (37.3 - 44.4%)
0 SpA Sliggoo Dragon Pulse vs. 0 HP / 0 SpD Frogadier: 126-148 (50.6 - 59.4%) -- guaranteed 2HKO
Yep, a LO STAB super effective Ice Beam deals less than Sliggo's uninvested Dragon Pulse. But how about something familiar? Let's cut right to 5th Gen NU's premier special Ice attacker, Jynx:
252 SpA Life Orb Jynx Ice Beam vs. 252 HP / 248+ SpD Eviolite Sliggoo: 156-187 (45.8 - 55%) -- 55.9% chance to 2HKO
Even one of the strongest super effective special attacks in the tier can't muster a guaranteed 2HKO against Sliggo. The only problems are that Sliggo will face tons of competition from Regice, lacks Dragon Tail (somehow, it gets Poison Tail & Iron Tail -_-;), and doesn't have recovery outside of HydraRest. Speaking of HydraRest, that makes it an excellent partner with Jynx and other Rain-friendly mons:
Sliggoo @Eviolite
Calm, 252 HP / 8 Def / 248 SpD
- Infestation
- Toxic
- Rain Dance
- Rest
It could also potentially run a more offensive set with those wonderful coverage moves, or a physically defensive set with Gooey. I can't wait for NU to get here!