Dimir Midrange

[lbaula]

I just made a dimir deck out of my pool and I was amazed it was that it's running pretty well. I'll appreciate any suggestion for further development of this deck :

Planswalker : 3
3 Ashiok

Creatures : 18
1 Abhorrent Overlord
1 Lord of the void
1 Lazav Dimir
2 Shadowboard demon
2 Lifebane Zombie
3 Gray Merchant of Asphodel
4 Nightveil Spectre
4 Desecration demon

Enchantment : 5
2 Erebos, GOD
2 Whip of Erebos
1 Underworld Connections

Spells : 10
2 Read to the bones
2 Heros Downfall
2 Doomblade
3 Far // away
1 Rescue from the underworld

Lands :24
4 Watery Grave
4 Temple of deciet
4 Island
8 Swamp
2 Nykthos, Shrine to Nyx

sideboard : 15
2 pithing needle
2 duress
2 ultimate price
2 Dimir Charm
2 rachet bomb
2 Mind grind
1 devour flesh
1 Ashiok
1 Jace MA