Alright /vp/ give me a hand here

I'm a huge sucker for signature moves, so I want to build a physical Greninja to use Water Shuriken.

I already bread a 5IV Adamant/Protean bro and bread Toxic Spikes onto him just in case.

I was thinking of:

Water Shuriken
Shadow Sneak
U-Turn
Toxic Spikes/Mat Block/Spikes

The idea for Shadow Sneak was being immune to an anticipated fighting attack but I don't think that strategy will be all that useful.

Help a casual out here?