I play a craftsman. And now, I can throw bomb without losing any HP(only indicate red miss on my character).
The bomb damage is also increased. My damage is 320 .I can throw npc bomb to kill a group of dancing pumpkins with 2 hits with only Lv1 skill(around 1400 per hit).
However, the npc doesn't sell the actual bomb manual at all.
The 300 dusk bomb manual that he sell is a manual to make head of pumpkin ghost.
While the 300 laxative bomb manual is a manual to make randomly part of box costume(beginner armor).
Luckily, he sell a bomb which is 200 cegels each too.