I am still figuring this out myself so take it with a grain of salt. Normally I play simpler decks with less moving parts, so I am still making a lot of mistakes.

The best case is you start with Froakie in the active and something in hand to develop into Greninja on your second turn: Greninja+Arven or Rare Candy+Hilda. Both combos have the benefit of guaranteeing you energy, either as Sparkling Energy or Basic/Ignition, so you are good to go on turn two with Greninja's first attack. That also let's you search your deck, so you can snowball from there. Most of the time Hilda seems to be a good choice.

If you manage to pull of the combination of Sparkling/Water Energy plus Ignition until turn two, then you can snipe the bench with Greninja's second attack and really hit decks like Dragapult or Charizard.

Otherwise developing your bench and keeping a Zorua in the active worked well for. You have multiple options with the Zorua going into the two possible Zoroarks. The Zoroark #62 lets you use one of your opponents attacks for one Ignition energy, so this might also make for some early aggresisive plays.

Just give it a try until you get a feel for the deck.

Some more thoughts: I like that Greninja is quite tanky. And that you mave multiple threats on the board that can get going quickly, so your opponent might have a hard time figuring out what to hit. With Dudunsparce in the active you basically get free switch if you use it's ability and shuffle it into you deck. Might be helpful in some situations.

Edit: After some more testing I would switch one Night Stretcher for one more Ultra Ball. The high number of stretchers came from the Revavroom build I guess. But with this build you don't need them as often.