Rosalina And Luma Vs Greninja Match up [Help]

[Ignitus]

I currently main Rosalina And Luma, and the most dufficult match up for me is, Greninja. Greninja's back aerial and dash attack puts Luma in tumble and knocks Luma away pretty far. Greninja's forward aerial can also bother Luma when used at a distance. In this matchup, I find Luma to die constantly and I usually take a lot of damage from Greninja's grab combos when Luma is dead. Should I just play extremely patient and try to time-out Greninja? I find this match up extremely difficult.