There are a number of possible Mage's Legacies, each granting a different bonus:
• Legacy of Amethyst
• Legacy of Basalt
• Legacy of Bismuth
• Legacy of Diamond
• Legacy of Gold
• Legacy of Granite
• Legacy of Jade
• Legacy of Quicksilver
• Legacy of Ruby
• Legacy of Sapphire
• Legacy of Silver
• Legacy of Stibnite
• Legacy of Sulphur
• Legacy of Topaz

Only one instance of each Mage's Legacy can apply its bonus to you at a time.