About Osa Chance

Other than PP and good drops, does Osa perform well at end game?

I kinda love depending on summon to kill mobs. Feels like i got army of beast ready to wreak anything on my path lol.. 

Especially with this latest update.. low level mobs getting stronger and bigger HP. if i'm not careful, those colourful larva easily eat my azz..

And how osa play? their effective playstyle? thanks..

i'm back after 6 years of hiatus