This is a sentient, lawful neutral great axe. It communicates empathically by transmitting emotion to the creature carrying or using it.
The axe’s primary purpose is to destroy giants and titans. When you hit one of those creatures with this weapon it deals extra damage. It also transmits a tremendous sense of satisfaction and wellbeing to its user when it kills a giant or titan, healing them magically when this happens.
After receiving the axe from Xander Huorath, and getting it repaired by Volkan, Helikaon now wields the weapon.