Only costing 2 MP, this medal can increase the value of any method of healing. Its effect is stackable; equipping both available medals will increase the healing amount by 2. By using these in tandem with Life Cast & TP Saver, you're able to use Secret & Sharing Stash for a positive net cost (you will gain HP). This effectively allows you to perform infinite heals with Vi.
How to Acquire
Found by talking to a hidden Stickbug.