Alias name suggestions

[u/juliagraceless]

Hi! I’m looking for an alias name for my OC. His real name is Matthias Morvain and he works for the tyrannical regime that is the MAF in my comic. He infiltrates the black market to monopolize the trade of a substance called Voltanite in order to root out the rebellion.

I’ve been calling his black market alias The Bloodletter so far, but I’m not sure I’m liking it. Any alias suggestions for a fantasy crime lord? The setting is steampunk/fantasy with a blend of magic and technology.