I'm going to argue that Lifetakers and Heartrenders should come down to 70. Their main advantage was being able to drop in any battle round, but that's been taken away. They're 5 models that die to anything, and they don't really do any damage. You put witchbrew and mindrazor on some lifetakers on round 3 and they'll perform...moderately. Heartrenders are pretty pathetic, with a statistical average of 1-2 wounds per shooting phase.
I think they're too weak to participate in the battle unless they have ALL the buffs (but why aren't you giving those to a better unit?), and we have enough teleportation in the army that deep striking isn't a huge necessity. They're just not worth their points anymore, especially in our magic/shooting meta.