Silrune of Titans

Official description:
A minor Titanic rune containing both Arunic and Sharan energy for crafting armor and weapons. Children and gamblers collect runedecks for play. In castanic runedecks: second-lowest of the five minor Titanic runes.

You can buy at:

 * You can buy Silrune of Titans from alchemy merchant at workshop. Workshop you can find in large towns.

See also:

 * Crafting materials