Board Thread:Questions and Answers/@comment-33033861-20170920162409/@comment-32510639-20180227213557

Wait for WT and get 30 millions points to get 6 Elder Kais, go to story mode and farm as many gems as you can and buy the Elder Kais from Baba's Shop.

Other than that, not really many ways to raise SA, unless the card has a farmable one.

But not all characters needs to have SA 10, use your Kais wisely, focus on heavy hitters and the ones that are staple on your teams.