Good Sun/Moon team?

[Barry B. Benson]

Here is my current Pokemon team:

LV 61         
Tapu Koko 
177 hp

LV 69
Decidueye
205 hp

LV 79
Talonflame
242 hp

LV 59
Raichu
155 hp

LV 79
Latias
253 hp

LV 69
Lunala
294 hp


Should I only replace some Pokemon, or completely overhaul my team and add in totally different ones?

[SirBlaziken]

In game that will suffice. As for competitive, I am not too sure. I haven't gotten into the meta and won't until lele is banned and greninja is at least suspected.

[Barry B. Benson]

I look forward to winning the Battle Royals and Online Battles, so I would like a good competitive team. As for regular gameplay, I always have Lunala and Latias on hand.