Rules Clarification: Cloak of Moonlight and Body Effects

[Donovan]

Cloak of Moonlight *
Additionally, a Cloak of Moonlight may be intentionally used-up in order to heal a target victim (as per Healing Magic). The Cloak will heal an amount in Body Points equal to how many points remain within the cloak. The Cloak may not be partially used in this manner, it is all or nothing. Once the Cloak has been used to heal someone the spell is terminated and the Cloak is gone.

Transferring the cloak terminates it regardless of the recipient having the nature sphere. If the Cloak was full when you took the hamstring, then you could transfer the cloak to heal yourself and fix the hamstring, but it would then be used up.