During each rest roll a d8 then select one cantrip from that school to use until the next rest.

1- abjuration

2- conjuration

3- divination

4-  enchantment 

5- evocation 

6- illusion

7- necromancy

8- transmutation

Add 2 to dex and 1 to wis

Your worship of your God gives you both power and weakness

Whenever you would die, return to 10 health and add 1 insanity counter. If you reach 3 insanity counters before a long rest you lash out randomly at anyone.