Karma

Karma is an unlockable trinket added in The Binding of Isaac: Afterbirth expansion.

Effects

 * Donating to a donation machine has a chance to do one of the following:
 * Heal Isaac for a full red heart
 * Spawn a beggar
 * Get a penny back, directly added to Isaac's total
 * Increases the chance that donating to a Donation Machine will increase Isaac's luck.

Trivia

 * The Symbol is a Triskelion, also known as a Triskele, which is often used to represent karma.