Build for the challenge on the Souls wiki forums.
Rules: 1. SL = 120.
2. Maximum resistance = 20.
3. Maximum for any stat = 50.
4. Of your 2 highest stats, at least one must be one of the following: vitality, endurance, strength, or dexterity.
5. Attunement may not be higher than both intelligence and faith.
6. Fill each armor slot, unless you want the slot to be empty. The player would be stuck with this armor configuration for the entire time.
7. Both ring slots must be filled. The player is stuck with these rings.
8. All weapon slots must be filled. The player is stuck with these weapons.
9. A maximum of one of each class of casting items (catalyst/talisman/pyromancy glove) may be equipped.
10. Multiple casting item types can be equipped, IF you have at least one corresponding spell of that type attuned.
11. Each spell can only be attuned once. Each weapon can only be equipped once.
12. No Covenant of Artorias, Orange Charred Ring, Cat Covenant Ring, Darkmoon Blade Covenant Ring, or Rusted Iron Ring.
13. You can only equip weapons/spells that you meet the stat requirements to use.
My old version broke rule 4.