Board Thread:Questions and Answers/@comment-25772346-20141127233255/@comment-23.113.144.185-20141202024122

I used Kur +2, but I'm sure you don't need the +2.

Go to the last level of Cave of Temptation (Something Stirs - 4).

Find a bat (3rd or 4th battle). I started with Burst and then I used my assist for a Pound and Crumble on the bat. Then I used my 5* Kur 8 times (other single target Rush 5* slash cards should work) and I finished with my last Assist which was a 5* Flurry Rush. It didn't proc and I saw the moon before that so you shouldn't need him. You don't need to end with a Pound. You need the 5* Rush to proc about 3 or 4 times I think.