The Massivence sword is the more potent version of the Palavence. The Massivence is not meant to damage an enemy; the Massivence is supposed to heal the user for 1 heart every time you block with it. It is crafted from Bloodgems and Netherite Ingots. It deals 1 point (0.5 hearts) of damage, heals 1/2 heart to the user and has 60 uses. By blocking (right-click by default) you will heal yourself as if attacking an enemy.