Rounding out the Senseis from Imaginators you can earn enough soul stones to summon her through playing the brand new Episode Dungeon that has released alongside her, which is as usual only open for two weeks.
![[User Posted Image]](http://www.darkspyro.net/images/other/ring/boombloom.jpg)
You can read the full patch notes to get the full details but Boom Bloom and the Episode Dungeon are pretty much the entire patch.