Well, the core should be (as said) a Farseer with fortune (Eldrad could be reserved for larger games),
 10 Wraith Guard led by a Spiritseer with conceal (then fortuning them makes sense),
 some more troop units (personal preference here, 2x 10 Guardians with scatter laser would be a useful choice),
 2 Wraithlords with 
bl, 
eml.
 
 I'd add an Avatar so that the Guardians could walk in his fearless bubble. 
