The summons is just the luck of the draw from what I have gotten out of it, I've had a couple multiple summons give me gold characters and a couple give me nothing but silver and bronze as well so I understand where you are coming from. It sucks to save up pearls just to end up with nothing good.
No im talking about summoning characters
Are you talking about the phantom castle?
HELP ME PLEASEE... I WANNA QUIT THIS GAME SO BADLYYYY
I think never. You only get a certain amount of ninja pearls in multiplayer, if you are a beginner. Approximately after 150 pearls you won't get any from the multiplayer missions. It is something like a "campaign" for beginners.
I like this game coz this is my favourite comics hehe.. But i wonder why the story mission ends so quick.. And its better if the character more complete.. I want to see pein, shisui, obito and madara etc