I'm considering two ideas that I might start next weekend or after.

One is about death knights... though it's a little better to imagine it almost like Power Rangers minus the giant robots, and you have to get murdered first to join.
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DEATH KNIGHTS
There are times when the forces of good must bring someone back from death to serve in the war between light and dark. The darkness arms itself with terrors, and their ranks outnumber the forces of good.

Murdered senselessly by the darkness, a group of youths find themselves resurrected by the light. Now called to aid the side that returned them to life, it is time to become Death Knights.

MECHANICS AND STUFF
High Undead:
A Death Knight has two forms: their living form, which is their usual living body, and their undead form. The basic undead form of a Death Knight is usually a corpse-pale, scarred version of their living body, complete with strangely glowing eyes. The undead form exhibits increased physical abilities, as well as access to magic.
It is said that highly advanced Death Knights can enter something called a Tyrant State, increasing their power and taking a more bestial form.

A Lich is a resurrected person with expanded intelligence and proficiency with psionics and magic. Unlike Death Knights, most Liches are allied with evil rather than good. Often they take on the role of coordinator. Accordingly the dark forces in the vicinity of Haven Glade are said to be under the direction of a Lich.

Wights are intelligent undead with the ability to drain energy from other beings; they can also use their absorbing abilities to take on aspects of other things; for example, a Wight could take on the aspects of a wolf, which would manifest as changes in its weapons, armor, and abilities. Most Wights are commanding officers in the armies of darkness.

Low Undead:
Zombies are the standard grunts for the armies of darkness. What they lack in durability and intelligence is made up for in sheer cheapness---they are easy to make.

Ghouls are a step up from Zombies, with clawed hands, feral agility, and vicious cunning. They are harder to produce, but more effective than Zombies.

MAGIC
Death Knights' magic is mostly related to elemental categories.
Suggested categories are fire, water, earth, air, cold, light, blood, metal, etc.
Fire: The element of aggression and power; common uses are enveloping one's weapons in fire, creating fiery slashes, etc.
Water: The element of flexibility and balance; common uses are watery slashes, and using jets of water as offense and propulsion; while water isn't very offensively powerful, there is a healing aspect to it.
Air: The element of evasion and agility; common uses are self-propulsion and creating whirlwind barriers or impactive gusts.
Earth: The element of stability and substance; common uses are shockwaves and rooting oneself to the ground for stability.
Cold: The element of order and self-control; common uses are freezing strikes and adding a layer of ice to one's armor; using it on one's feet can allow a skating effect.
Light: The element of optimism; common uses are blinding flashes of light and imbuing one's weapon with light energy.
Blood: The element of instinct and loyalty; common uses are a damage-induced frenzy and the augmentation of nearby allies' strength.
Metal: The element of analysis and realism; common uses are enhancing one's weapons and armor.

WEAPONS
Conventional weapons are pretty damn ineffective against the undead. A Death Knight's weapon is imbued with the magic within a Death Knight's existence, and is thus effective aginst other undead. However, the complexity of systems like firearms and explosives result in poor magic distribution, so the closest thing a Death Knight can have to a "magic gun" is a musket of sorts (best equipped with a bayonet). More basic melee weapons and bow weapons are more reliable.

CHARACTER SHEET
Name:
Age:
Gender:
Description: Discuss their living and undead forms. And clothes, because they'd better not be running around nude.
Equipment: Whatever weapon(s) they use in their undead form, and whatever armor (or equivalent) they wear (their armor doesn't need to be very heavy).
Abilities: Most Death Knights keep to one category of magic.
Personality:

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The second idea is a retry of the Homestuck ITP; the recent updates have revealed more about the class and element mechanics, and I've generally just been wanting to do that again.
Also, by "next weekend" I mean "maybe Sunday evening at the earliest" 'cause of fun running around and trying to claw down scholarships.