The prophecy system was removed from the game in version 3.17.0. Itemised prophecies no longer exist in Path of Exile.
From The VoidThe iron heart, burned in the blackness of the void that lies beyond sight, rots all it touches.You will defeat Bameth while holding Blackheart.Right-click to add this prophecy to your character.
Acquisition Not in game Seal cost: 1× Silver CoinMetadata Item class: Currency Item
Kill Bameth, a unique Beyond Demon, while wearing a BlackheartBlackheart Iron RingAdds 1 to 4 Physical Damage to AttacksAdds (10-15) to (20-25) Chaos Damage to Attacks Regenerate (10-15) Life per second 10% chance to Cause Monsters to FleeFear is highly infectious., or have it in the inventory of the player character.
Reward
Upgrades BlackheartBlackheart Iron RingAdds 1 to 4 Physical Damage to AttacksAdds (10-15) to (20-25) Chaos Damage to Attacks Regenerate (10-15) Life per second 10% chance to Cause Monsters to FleeFear is highly infectious. to VoidheartVoidheart Iron RingRequires Level 48Adds 1 to 4 Physical Damage to Attacks5% increased Global Physical Damage Adds (10-15) to (20-25) Chaos Damage to Attacks +(20-30) to maximum Life Regenerate (10-15) Life per second 10% chance to Cause Monsters to Flee Melee Attacks have (30-50)% chance to cause Bleeding Melee Attacks have (20-40)% chance to Poison on HitNothing spreads fear faster than the unknown. upon completion.
Removed the Prophecy mechanic from the game, and moved many of its rewards to other content.
Silver Coins can no longer drop. Existing Silver Coins and itemised Prophecies will be deleted from your inventory and stash the next time you log in after the launch of 3.17.0.
You are no longer required to have the subject of a fated unique Prophecy equipped, and can now complete such prophecies by merely holding the unique item in your inventory while killing the correct boss.