LBE – minimal balance changes for Heroes V 3.1.

I support this decision - I made something similar for myself a long time ago, but like this:
- raising the dead to level 3 and the cost is 11
- regeneration to level 3 and the cost is 11

I was thinking like this:
Regarding raising the dead, so that it wouldn't be possible to cast it with 1 knowledge point. Raising the spell level is pointless: Necromancers have it, and for other races, the raised creatures don't persist.
Regarding regeneration, so that it wouldn't be possible to cast it twice with 3 knowledge points and so that not all races take it.