Bold or Stupid
First Post
Well, the answer is "Don't put that ability on a non-minion, because then it would be completely broken with their much higher durability." As-is, they may spawn a few extras, all conveniently bunched up in one spot already. Since they're minions, they all die to all sorts of auto-damage zones that any half-optimal party should be able to spit out.
Or just have them spawn minions.
A demon alchemy seems fine to me, since alchemy in fantasy seems to be a a skill about how long till you blow yourself up.