Cannot find dark blast

[kaozdl 0]

I've bought dark blast from james the priest and learnt it, but I cannot see it on the skill section to equip it.
I'm missing something?

Thanks in advance

[supmail06 0]

Press U. In basic skill tap number 2. Its skill have "hand" icon.

 

[kaozdl 0]

Thanks man! I don't know how I didn't see it.