Add a new rule, entitled Ascendancy:

Professor Abalone’s School of Witchcraft and Miscellany goes through cycles of Light Ascendancy, when the Headmaster and Alive Students have the upper hand, and Dark Ascendancy, where Lord Marvolo and the Zombie Students are more powerful. The School is currently in a time of Light Ascendancy; if there is a rule entitled Dark Ascendancy, it and all of its sub-rules have no effect.

Add a new teacher to the Teachers list, called Lord Marvolo. His field is set to Unbridled Evil, his condition is Zombie, his Pet is set to “All Zombie students” and his Grudge is set to “All Alive students”.

Add a new sub-rule to rule 2.6, entitled Lord Marvolo:

Lord Marvolo is a Teacher. Lord Marvolo’s Grudges and Pets are not affected by any rule except this one. Lord Marvolo always has a Grudge against all Students whose condition is Alive. All Students who are Zombies are always Lord Marvolo’s Pet.

As a weekly action, and only if no other Student has done so within the preceding five days, a Zombie Student may Channel Lord Marvolo by making a post entitled “Channelling Lord Marvolo”. That Student is then considered to be Lord Marvolo until they either cease to be a Zombie or another Student performs the same action.

Add the following to the end of rule 2.4:

Unbridled Evil is also a subject, but Students may never possess a grade in it.

Add the following as a sub-rule to rule 2.5, entitled Lessons in Evil:

As a weekly action, Lord Marvolo may call an Evil Lesson, by posting a blog entry with the subject “Evil Lesson: Unbridled Evil with Lord Malvolo”. If a Student has not yet commented on the post and is not on Detention, that Student may choose to Study or Disrupt the lesson; however, students who are Alive may not study the lesson, and Students who are Zombies may not disrupt the lesson.

If the number of Students who Study an Evil Lesson is strictly greater than the number of Students who Disrupt it then any Student may change the last sentence of the rule entitled “Ascendancy” to read:

The School is currently in a time of Dark Ascendancy.

Add a new rule, entitled Dark Ascendancy:

Any Student may, at any time, chance all instances of the phrase “the Headmaster” in the ruleset to “Lord Malvolo” with an asterisk after it, except in this rule or subrules to this rule.

Add a subrule to this rule, entitled Return of the Light:

If ever a Student successfully returns the School to a state of Light Ascendancy, that Student must replace all instances of the phrase “Lord Malvolo” that have an asterisk after it with “the Headmaster”. They must then change the last sentence of the rule entitled “Ascendancy” to read:

The School is currently in a time of Light Ascendancy; if there is a rule entitled Dark Ascendancy, it and all of its sub-rules have no effect.