Bloodstone

The Bloodstone is an Item purchasable at the Main Shop, under Armor. The stone gives the carrier a massive health and mana bonus, as well as equally large regeneration bonuses. It is the last of the blood artifacts forged by the powerful Hemomancer, Erythros, centuries ago.

Charges
The stone carries charges on its passive ability, Bloodpact. The charges increase the effectiveness of the ability, as well as decrease the penalties for death. When an enemy hero dies within 1600 AoE of the carrier, the stone gains 1 charge. When the carrier dies, he heals an amount of hit points equal to 400 + 30 for each charge to all allies within 1675 AoE and loses a third of its charges (rounded down.)

Each charge on the Bloodstone adds 1 Mana regeneration per second, reduces gold lost on death by 25, and reduces the respawn time by 3. Bloodpact will only function for the highest priority Bloodstone in your inventory.

Bloodpact
The Bloodstone relishes the thrill of combat, and grows in power as the bearer's enemies die around him. Every time an enemy hero dies in 1600 AoE, the Bloodstone gains 1 charge. When the bearer dies, he restores 400 + 30 per charge HP to all allies in a 1675 AoE and loses a third (rounded down) of its charges. While dead, the bearer has 1800/1800 AoE around where he died, and earns experience in a 1000 AoE at that location. The Bloodstone also reduces the impact of death on its bearer.