Hmm this is very interesting. Iv'e never tried this before. Sounds like an effective tactic that doesn't cost any extra points! I'll try it next game I play with necronsTactic:
Deploy your Monolith on the middle-left. Deploy two really juicy squads on your right, these are the bait. Using two really large warrior squads typically get's the enemy's attention. Deploy your lord within 6" of one Warrior squad. You're trying to get your enemy to deploy as much as possible across from the Warriors.
On the first turn you teleport a squad of Warriors from the right through the Monolith to the left side of the board. Your Lord teleports the other squad of Warriors tothe left side also. If it all goes well you just left half your opponent's army sitting on the far side of the board with nobody to fight. Leaves you a few rounds to pick them off as they run to you from across the board.