The Terra Sling Mace is the main weapon of Angus, the Mystic Knight of Earth.
The Terra Sling Mace appears as a stone ball and silver crucifix-shaped mace handle connected by a long chain.
With the ability to attack using earth-based magic, the Terra Mace has the ability to heave massive rocks and boulders from the earth through the air at an enemy. The mace can create powerful earthquakes, as well. The weapon also serves to bludgeon opponents in close hand to hand combat.
- The Terra Sling Mace is not actually a mace at all, but actually a flail.
- A medieval mace is depicted as a spiked club.
- The Terra Sling Mace has never actually been called by its name, as most characters call it "The Mystic Mace", "Angus's mace" or "The Sling Mace".
- In the second episode, the stone ball part of the mace once grew to large proportions to attack the Temra army when Angus threw it.
- The Terra Sling Mace is the second Mystic Weapon without a dragon motif.
- The first is the Whirlwind Crossbow.