Fanny Pack

Fanny Pack is a passive item.

Effect

 * Grants a chance to drop a random pickup whenever Isaac takes damage.

Synergies

 * Works decently with Blood Donation Machines and IV Bags, as there's a chance to receive a consumable when donating HP. The Bloody Penny can amplify this effect, giving Isaac more chances to use the Blood Donation Machines.
 * Holy Mantle's initial damage block will sometimes activate fanny pack without costing Isaac health.
 * Works well with Samson, as every time the character takes damage, he gets a damage increase and a chance at an item.