This pillar is made from green glass like substance and its shaped like a huge needle, standing and keeping balance on smaller piece that is on the ground. It is surrounded by eight smaller but same shaped crystals. Its seal is blue.
When the seal is taken, it causes Magix to shake and structures to come down with lack of balance.
In The Singing Whales, Tritannus steals the seal of the Pillar of Balance and the whole magic dimension loses its balance and starts shaking and causes the Singing Whales of Melody to disappear.