Board Thread:Questions and Answers/@comment-32644483-20170721170918/@comment-32510639-20170723165329

You can wait until the end of the month and you will get 2 more Elder Kais, meaning you will have 18.

On who you need to use them, well that is up to you...But some cards are worth of investment, like Gogeta, Black SSJR and Vegeta SSJ4. For example if your main team is mono Extreme, then go with Black SSJR, but if your main team is mono Super, you need to choose between Gogeta and Vegeta SSJ4, then it comes to who is your main team, mono STR or mono AGL. After all of that consideration you will know on who to use the Elder Kais.

So maybe you should wait for the last 2 Elder Kais and split them between Gogeta adn Vegeta SSJ4.