Enchanted Hearts

"Now, it belongs to me. You see, when you take a heart, it becomes enchanted. Stronger than a normal heart. You're not hurting the beast. You're controlling it."

- Rumplestiltskin to Regina

Enchanted Hearts are magical items featured on ABC's Once Upon a Time and Once Upon a Time in Wonderland. They first appear in the seventh episode of the first season of Once Upon a Time.

Effects
The user of an enchanted heart can:
 * Crush it and kill the victim
 * Control the victim's actions and speech
 * Use the heart to reanimate the victim's dead bodies
 * Split it in half to save a crushed victim of true love
 * Remove the Darkness from within the victim's heart using the Sorcerer's Hat to absorb it

Additionally, people with their hearts ripped out are unable to feel any true emotion until the heart is restored. If someone commits an evil act of darkness like murder, the heart will begin to blacken; and if this heart becomes completely black, the person will die. They are also immune to the effects of the Boro Grove's enchantment and the Spell of Shattered Sight.

Recreational Ability

 * Rumplestiltskin/Mr. Gold - Acquired the skill from the knowledge of the Darkness.
 * Cora - Was taught the skill by Rumplestiltskin.
 * Evil Queen/Regina Mills - Was taught the skill by Rumplestiltskin.
 * Peter Pan - Not known how or when he acquired the skill.
 * Zelena - Not known how or when she acquired the skill, possibly taught by Rumplestiltskin.
 * The Apprentice - Not known how or when he acquired the skill.
 * Emma Swan - Acquired the skill from the knowledge of the Darkness.
 * Nimue - Acquired the skill after drinking from the Holy Grail and gaining magic.
 * Hook - Acquired the skill from the knowledge of the Darkness.
 * Hades - Not known how or when he acquired the skill.

Limited Ability

 * Henry Mills - Is the dubbed the "Truest Believer" and Pan gives him a one-time ability to take out his own heart. Unlike normal hearts, Henry's has a golden glow to it; a reflection of his great belief.
 * Hook - A special one-time potion-induced enchantment the Evil Queen places on his hook to have the power to rip out a heart. Hook reuses this enchantment by pouring the potion onto his hook.
 * Snow White - Gained in alternate reality, undone after alternate reality reversed.

Resurrection Using Enchanted Hearts
The action of placing a beating enchanted heart in the heartless chest of a dead person can bring them back to life. In some cases, this brings awful side effects: extreme violence and irrational thinking.
 * Gerhardt is resurrected by his brother, Victor Frankenstein, using an enchanted heart brought to his world by Rumplestiltskin. However, as a side effect of being brought back to life, Gerhardt becomes a violent and irrational creature. He ends up begging his brother to put an end to his misery.
 * Daniel is brought back to life by Dr. Whale after the curse is broken. The same side effects are developed, leading to Daniel ripping off Dr. Whale's arm. Regina ends up turning Daniel to dust, as he begs her to.
 * Prince Charming is brought back to life by Regina using half of Snow White's heart. However, due to their true love, they are able to share one heart, and thus there are no apparent side effects.

Appearances
Note: "Archive" denotes archive footage. Corazones encantadas Verzauberte Herzen Cuori incantati