The Grievous Mace (Gravity Mace in Japan) is a Mace found in Golden Sun. It is one of the prizes that can be won in the Lucky Medal Fountain in Tolbi. It can be bought for 7000 coins and sold for 5250 coins. Being a Mace, it can be equipped by Isaac, Felix, Garet, Sheba, Mia, and Piers. It increases the wielder's attack by 88, and inflicts Venus damage rather than physical.