Bloodthirsty — a magical weapon with this property grants a +2 bonus to attack rolls and to a single damage die of weapon damage if, and only if, the weapon dealt the killing blow to a foe with at least four hit dice within the past twenty-four hours. Otherwise, it imposes a penalty of two instead of the aforementioned bonus. These Bloodthirsty modifiers are in addition to any other magical bonuses the weapon possesses. Thus, a +3 Bloodthirsty shortsword might provide an overall bonus of +5 to to-hit rolls and to a single weapon damage die.

Vampiric — A weapon with this property restores two hit points to its wielder — up to the wielder's maximum hit points — whenever the weapon draws blood from another creature. Only a weapon able to deliver piercing damage may have this property. While wielding or carrying a Vampiric weapon, the owner enjoys a +4 bonus to saving throws against undead. On a critical miss, the weapon's Vampiric property is suppressed for the next 1d4 rounds. On a critical hit, an injured foe will bleed for an additional two points of damage per round for the remainder of that encounter, or until healed. This extra bleeding damage doesn't cause the Vampiric weapon wielder to regain two hit points.