[@The Grey Dust] Ghoul's way too good of a wall while Necrovalley is out. Maybe reduce the graveyard summon effect to once per duel, because otherwise you literally can't get over that card if Necrovalley doesn't get dealt with... And if you're smart, you basically have six copies of it in your deck (Terraforming). 

Scratch that, nine necrovalleys with that new card =P. All other card 'cept ghoul seem fine to me, though hourglass is definitely being limited to two if I do let it through.