While I do not have the "Otsutsuki Optional Pack", I'm almost certain the Tsukuyomi Battle Power Pack is the same between them and the "Pain Optional Pack".

Here are the contents of the Tsukuyomi Battle Power Pack:

You can select one of the following rewards:

New Refine Optional Pack *8

Cave Key *75

Deluxe Myoboku Optional Pack *10

Charm Materials Pack *8

Training Potion *100

Secret Scroll Optional Pack *5

There are a total of 100 packs if you want to exclusively get them instead of any of the Ninjas.

Hope that helps, sorry this answer was so late.