Dáinsleif

''A magic sword that requires the user's blood to be contained after having been unsealed. You can use its powers to absorb your opponents' lives at the expense of your own lifeblood...''

Description

 * two-handed, single-edged sword
 * great-sword
 * mode-change
 * HP drain

Trivia

 * The word Dáinsleif in Old Norse means "Dáinn's Legacy". Dáinn is a dwarf, with his name meaning "Dead" in Old Norse. Taking it as a whole, Dáinsleif means "Dead Legacy".
 * Accessory based off a sword from Norse Legend. Wikipedia article on Dáinsleif here.