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BOOM!
The Goblin Champion fell over the floor, covered in black flames.
These black flames were amazing, they didn't spread around the vegetation and would only affect their target, burning them until they ended in a crisp.
I think I was able to control them and was mildly resistant to them because I was the wielder of the cursed blade, I had touched them several times, but they didn't burned me at all.
And then I realized it… these black flames are more special than I had originally thought.
They actually didn't burned me nor burn plants or anything aside from the target because, much like a curse, they only affect the target I use them against…
I see. This makes it even more powerful… I could use it in many things, but the bad thing is that I can only use it with this blade, conjuring the black flames alone doesn't seem to work.
Check "The Protagnist's Sister Is Actually the Strongest"!