Frosmourne tattoo means power and evil. Frostmoore's name, whether you have played Warcraft or not, it is estimated that this weapon can be equivalent to the pronoun of "Warcraft". Frostmoore is a magic sword, a powerful weapon that can turn the world around and change human nature.
Frostmoore was forged by the king of fear. The soul of the Lich King naiozu was attached to it. Finally, it was found and pulled out by Alsace, Prince of Lordaeron. It is tattooed on the sword: "the sharp blade kills life, and the power wounds the soul". After pulling out the sword, Arthas became strong and bald! No, it's evil.
He changed from a handsome Paladin with blond hair to a death knight with silver hair. An old era has passed. Arthas finally became the new Lich King with the Lich King Ner'zhul! A new era of Alsace has come! Frostmoore, it's really powerful to turn a just partner into an evil devil!
Source: @orca_ink