Talk:Dragon Ball Super: Broly/@comment-38412919-20190204011859/@comment-32271305-20190204012230

It's all explained at the bottom of this page: All Character Categories

Basically, the rarity of your cards increases the chance of getting an additional drop. 100% guarantees an additional drop, 175% guarantees an additional drop and gives a 75% chance for a second drop, 200% guarantees two additional drops, etc.