Guide to Gravelording:

  Step 1: Join papa nito
  Step 2: Get human in a place with boss not dead
  Step 3: Pop an eye of death
  Step 4: Only get invaded by darkwraiths
  
  As a gravelord, you use eyes of death to attempt to infect other people's worlds, this spawns 
    black phantom versions of normal enemies, which are much stronger than the normal versions. You then
    have a sign through which those people can invade in an attempt to kill you, and uninfect 
    their worlds.

  However, the black Phantoms do not spawn for people in NG, only the gravelord sign will show up. 
    For this reason, you're going to want to stick to NG+ levels.

  SL 80-100 for earlier areas
  SL 100-120 for end-game areas.

  You're probably going to want to stay away from pvp hotspots, as even if you infect someone in NG+, if 
    they are just there for pvp, they probably won't run into the BPs.

  Good places for gravelording:
    Anor londo - BP silver knights everywhere
    ToTG - Skeledogs
    Sen's - Loadsa Snakes
    Darkroot Garden- TWoPing BP Stone Giants
    Painted World - Black Phantom Wheel Skeleton pit

Misc Notes:

  - You do not need to be in NG+ to spawn black phantoms, only the people you are trying to infect do.
  - You can infect players that are hollow.
  - You can infect players that have killed their boss.
  - The only thing that differentiates a darkmoon and someone invading through your sign, is whether 
      they drop an eye of death when you kill them.
  - Although they do invade you using a sign, the spirits of vengeance will spawn in the normal invasion
      locations.
  - Eyes of Death can be farmed off of basilisks in the Depths, this is far preferable to trying to farm
      them off SoVs.
  - Multiple infected players can invade you through your sign at one time, and not everyone invades a
      gravelord for a friendly duel.
  - When your eye of death is active, a "dried finger" effect is active as well. The same player can 
      invade you repeatedly without the normal timeout.
  - Your gravelord sign will follow you around, so if you want Spirits of Vengeance to invade you, 
      staying near a bonfire/obvious spot is recommended.


How to infect specific people:

  How many souls each enemy drops (as a phantom you get half these amounts):
     http://darksouls.wikidot.com/enemies

  1. Be hollow (just so you dont get invaded before you get summoned)
  2. Put summon sign down
  3. Get summoned
  4. Kill an enemy, look at the souls you get to see if they are in NG+.
  5. Black Crystal out
  6. If they weren't in NG+, go to step 2
  7. Go human
  8. Pop an eye of Death

  You just infected that persons world!


AFK Gravelording:

  Lets say you just want to spread misery without worrying about invaders. 

  Enter in, AFK gravelording.

    -Waste dickwraiths' time
    -Gravelord people who have no chance of un-infecting their world
    -You are free to do whatever else you want

  1. Get to an area where others can't find you
  2. Pop an eye
  3. Go to sleep, watch tv, browse dsg, etc
  4. Come back to all the angry messages from darkwraiths asking where you are.

  Some examples of hiding places:
    http://youtu.be/yDznknPGo_E
    http://youtu.be/t7M4pPfC2LY
    http://youtu.be/pdNRBPyQyQk
    http://youtu.be/EaDH_kZE_gg
    http://youtu.be/kXm0WJt4Pv8

Cheat engine method:

  You can use cheat engine to get to a bonfire in a way that makes the area inaccessible to invaders,
    then pop an eye.

  Here's one that I know of so far:

  Depths Bonfire:
    This one is easy, the door to the bonfire is locked, invaders cant open locked doors, 
      you do the math.

Perma Gravelording:

  While gravelording, you can still use summon signs/cracked orbs. If you invade/get summoned to another world
    while you are currently infecting someone (though this may be a bit hard with interrupting invaders), when
    you return to your world you will no longer have the gravelord aura, but the person's world will remain 
    infected, even if you die.

  tl;dr
  1. Infect someone, preferably with the summon trick.
  2. Use a cracked orb/get summoned
  3. The Black Phantoms in their world will not disappear, not even if you die.

  This means you can potentially infect someone, then invade that world.
  You can also infect someone, then get summoned by them if you fancy taking on your own BPs.

  The fix for perma-gravelording is easy, simply stay in the gravelorded area ten minutes without dying or 
    using a bonfire. Alternatively, get gravelorded by someone else and kill them.

Other Guides:

  http://forums.steampowered.com/forums/showpost.php?p=33805886&postcount=2
  http://darksouls.wikidot.com/gravelord-black-phantoms
  http://youtu.be/E-TzeyuF1_c
  http://youtu.be/RhHhU7Jx67c
  
  
Funny Gravelord Videos:

  http://youtu.be/y_Mgq6kfWtI
  http://youtu.be/fSZ15lPH12I
  http://youtu.be/o8LoEXpKWHk
  http://youtu.be/hN9qV8S18NA
  http://youtu.be/UdPC0QrtZVY
  http://youtu.be/8bm4U-wAW2o