MTG Salvation

I'm putting a black/blue deck for casual play. Not looking to fit any format, particularly, but with the exception of 4 dark rituals, it's a Modern fit right now. A dark ritual to throw out a crypt ghast on turn two is just colossal. Tapping for 6 mana on 3rd turn really helps me keep up with my roommate's green ramp. Plus I'm running a reanimate deck with blue splash and 4x Dictate of Erebos,so opponents think twice about attacking my little Ghast. Then by turn 4 or 5, I'm pumping enough mana to lay down a Skinrender or Disciple of Bolas, giving me card draw and or simply removing one creature for each opponent. Then reanimate and repeat! My deck couldn't work without Crypt Ghasts right now.