Blood is Power

Usage

 * This is an enchantment, so it is strongly advised to use a staff that lengthens enchantment duration by 20% to increase its efficiency.


 * If you're playing as a supporter for your party, don't forget to bring a selfheal with you and tell the monks not to heal you if not absolutely necessary. Otherwise they will waste half of the energy gained from Blood is Power on healing your sacrifice costs.


 * Blood is Power is also one of the fastest ways to kill yourself; this aspect of the skill is often used by a necromancer to produce bodies for a minion master to raise an undead army. This is usually combined with a mesmer using maximum levels of  fast casting and normal resurrection skills (such as Restore Life).  The necromancer also uses BiP constantly on his team mates to effectively keep their energy topped off. If this is done, they are deemed as a battery necromancer.


 * Note: Blood is Power rounds life loss. This means that a caster with a maximum of 1 health will not actually sacrifice any life when casting Blood is Power.  (One way this could happen is by dying as an Invincimonk and being resurrected with 100% health, through a Resurrection Signet or Shrine.)  This allows the caster to repeatedly cast Blood is Power without limit. Of course, the caster dies after one hit from anything (even with Protective Spirit), limiting the usefulness of this exploit.

Acquisition
Signet of Capture:
 * Cry Darkday (Snake Dance)
 * Chan the Dragon's Blood (The Undercity)

Related Skills
Monk
 * Peace and Harmony
 * Succor

Necromancer
 * Blood Ritual
 * Well of Power

Ranger
 * Melandru's Resilience