Create a new rule, “Energy”:

Each Apprentice has an amount of Energy, tracked in the GNDT. New Apprentices start with 5 Energy.

Create a new rule, “Domains”:

Each Apprentice has an amount of Mastery in each Domain. An Apprentice’s Mastery is tracked in the GDNT under “Mastery”: for each Apprentice, each Domain with nonzero Mastery is represented in the GNDT by the first letter of that Domain, preceded by the amount (Level) of Mastery they have in that Domain (e.g. an Apprentice with 3 Mastery in Fire and 2 Mastery in Arcane would have 3F2A in their Mastery cell). Apprentices start with no Mastery in any Domain.

The Domains are:

* Fire - Element of chaos and destruction.
* Water - Element of protection and change.
* Nature - Element of growth and physical force.
* Time - The skill to hasten, pause or even reverse the passage of time.
* Arcane - Difficult to master, Arcane magic enables one to tinker with the strands of magic itself.

Set each Apprentice’s Energy to 5. Set the Wizard’s Energy to 25 and their Mastery to 5F5W5N5A.