Find a friend to cosplay as Garl Vinland (I don't know how that would be done), summon him/her in blighttown, then wait for invaders (you should also use the dried finger), when someone invades you, have the Garl attack them, then start sending them heartbreakingly sad messages, if they kill Garl, let them come up to you, drop a boss soul (preferably quoting astrea). Then sign out.
