Where to find Iajutsu?

argh i've been farming at volcano for 6 days. at least 50 tries but I haven't seen a single Iajutsu. only got martyrdom though.

found another one today at volcano 1, was farming for fire bomb but came across another laijustu. good luck

i got a fire bomb during one of my many runs. if only we can trade haha

I think they are prevalent in Volcano for most people. Hopefully, you'll find one soon!
I spent 90 coins on my first one and I'm regretting that now. -.-