Return to Sender is a passive item in Battle Fantasy, a mod for The Binding of Isaac.

Upon taking damage, Isaac shoots out a projectile towards a nearby enemy which changes properties depending on the weakest heart type he has in his health bar. The projectile scales off of Isaac's damage stat, but deals at least 20 damage.

The effects are prioritized in the following order:

• The Forgotten: Shoots a bone tear with the Rubber Cement and Compound Fracture effects.
• Keeper and Tainted Keeper: Shoots a coin tear with the Rubber Cement effect. Enemies hit by the tear turn into gold.
• Red Heart: Shoots a blood tear with the Rubber Cement effect that releases red creep as it travels. If Isaac has Rotten Hearts, spawns 2 Blue Flies where the tear lands.
• The Lost and Tainted Lost: Shoots a tear with homing, piercing, and a higher damage multiplier.
• Soul Heart: Shoots a tear that splits into 6 smaller tears with spectral and piercing upon hitting an enemy.
• Black Heart: Shoots a homing Dark Matter tear with a higher damage multiplier.
• Bone Heart: Shoots a bone tear with the Rubber Cement and Compound Fracture effects.

Return to Sender can be found in the following item pools:

The following tags are applied to this item:

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