To be honest i really dont know the rates but i can tell you that after 9k coupon yes you read that right 9000... i didnt get a single ninja ... not one .. now i didnt count how many lucky packs i had.. probably 80-100 .. but not one ninja. So its hard to tell how much is it even for the other ninjas as well. But i heard people were getting sakura in like 5-10 packs so my account is really unlucky like srsly unlucky cause 1200 pulls in kage treasure not a single super rare... yeah