In 'The Binding of Isaac,' the item that shields Isaac's tears and decreases shot speed is Lost Contact.
In the game The Binding of Isaac, the item that provides Isaac's tears with a protective shield, allowing them to block enemy projectiles, and causes a Shot Speed Down of -0.15 is C) Lost Contact. When the Lost Contact is picked up, any tears fired by Isaac will be able to collide with and neutralize enemy projectiles, effectively providing a layer of defense during combat. However, the trade-off for this defensive capability is a slight decrease in shot speed, making Isaac's tears move slower.