Insight

 Insight  is a trinket-exclusive rune in Villagers & Heroes.

  

Acquisition
 * The values x and y are dependent on the level of the rune that the spell is coming from.
 * Activate to restore x Mana over 20 seconds and increase your Intellect by y for 60 seconds.
 * Available at level 35+.
 * All classes have to manage their Mana and trinket runes like this help with that task.