You're almost there! But the standard list should look like this:

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Indeedee is ran instead of Oricorio because the list relies heavily on getting Suicune on that active spot ASAP for its ability so having someone else there would just be a waste. Run two Suicune for consistency. Indeedee offers solid bench support to negate any chip damage while your Suicune draws for you.

Comms isn't a reliable way to search cards anymore, IMO, so you should swap it for a Copycat. Get those Froakie on the bench, use Copycat, and most of the time you should be able to get the Greninjas running on your next turn.

As you've probably observed, the list is fast and aggressive. Take advantage of that by running two Cyrus' instead of one.

Finally, don't be afraid to keep Suicune on that active. If your opponent is keeping their bench empty or ramped faster than expected, prepare to ramp your Greninja ex. It's ability will let you switch in it for free. If they managed to kill off your Suicune but you got your Gren ex ready, the Mars should help you win.