A suggestion for a new "cursed with awesome", as they might be called: The Lich
Ritual: perform at night under a new moon
altar power: 10000
7x7, 11x11 and 15x15 nether chalk
items needed: Necromantic stone, bone, rotten flesh, hint of rebirth, graveyard dust, brew of hollow tears, refined evil, brew of raising, phylactery*
effects: you are now a level 1 lich. potions of harming heal you, while potions of healing damage you, and the effects of brew of flowing spirit and brew of hollow tears are switched. Sunlight causes you to catch on fire. All monsters will ignore you unless attacked. Villagers will run from you if you move more than 5 blocks towards them expect by sneaking (waived if you have a good reputation with that village). You no longer need to eat, and are immune to the wither, poison and disease.
You gain levels by raising, controlling, or fighting undead, particularly if you raise them and control them to fight other undead! As you level up, you gain the following:
level 2: potions of healing do less damage, and your heath, such as it is, increases.
level 3: you gain a bit of resistance to the sun; sunrise and sunset do not harm you, although morning, noon etc. still do
level 4: Your command over the undead grows! The necromantic stone now controls undead you did not summon yourself, although it will only affect a few at a time (4 max)
level 5: potions of healing no longer harm you, and the wither effect heals you.
level 6: your heath and strength increase, and you gain the "grotesque" ability, allowing you to turn on or off the effects of a brew of the grotesque at will. Your attacks also gain the wither effect
7. The sun no longer causes you to catch fire, although you find your strength lessened somewhat in it, reducing your damage by a small amount. Also you can summon a few undead every now and then without a brew. the ability takes 5 min to recharge. Also if you kill a villager it will respawn that night as a zombie under your control
8. The undead heed your every command! you no longer need a necromantic stone to control the undead, and up to 8 you did not summon will now obey you. Your heath and strength increase, and you can "cast" a brazier effect of your choice every 10 minutes. The effect lasts for one minute and has a 10 block radius, centered on you.
9. You gain total immunity to the sun, and you can leech life from your surroundings to heal yourself and increase your strength. When you use this ability, plants die, dirt turns to sand, and living beings take some damage and gain nausea while you regain heath and get a damage and speed boost. This ability takes 5 min to recharge.
*the phylactery is crafted with 4 gold ingots (i), 2 refined evil (e), 2 graveyard dust (g), and 1 soul sand (s) crafted thusly:
Hide/guard it well, for if it is destroyed, until you craft another, you count as a level 1 lich, regardless of how many levels you've gained.