Achilles Heel: Antaeus Curse

Antaeus curse by Dragon blaze 99

When Hercules was in the service of Eurystheus, he was ordered to fetch the golden apples of Hesperides. But the golden apples of the Hesperides were guarded by the giant Antaeus, the son of Geea, the earth Goddess. Hercules closed with Antaeus, and during the struggle Hercules observed that Antaeus was always refreshed and strong when he stood upon the earth, but became weak and powerless as soon as he was separated from the earth and lifted up into the air. Therefore Hercules lifted Antaeus high up into the air, where he could easily strangle him.
The character's powers are lost when lifted off the ground, the characters powers are halved in strength every melee he is held off the ground. After 4 melees (1 minute) all powers are gone until the character once again contacts the ground.
(This could also be changed to water for some characters)