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In Kingdom Hearts Final Mix, MP Gift is a combat ability exclusive to Goofy that gives another party member 3 MP. It is a support skill that costs 3 AP to equip and 2 MP to use. In the English PS3 version of Kingdom Hearts HD 1.5 ReMIX, the description incorrectly states it requires 1 MP. This was fixed in the PS4 version.
Learning MP Gift
Kingdom Hearts Final Mix