Magician of Faith really isn't needed. Just because it's been kicked back on the restriction doesn't mean it should be decked. The only card that you'll really want back I would imagine would be Card Destruction for speed. More speed from Morphing Jar and Gazetto so you can abuse of your SEVEN beatsticks. lolz~
-2 Magician of Faith
+1 Morphing Jar
+1 Great Demon Gazetto
OR +2 Dark Jelloid
Waboku for monster protection...? Isn't the point of decking 2 Necro's to have Demon's in the grave so you can summon? Protection by Removal/Destruction is always better then stall. So what if Slate Warrior get's destroyed, it has it's nifty stat reduction effect as backup. Removal is always fun, as is destruction, especially when it's removing or destroying Cyber Dragons:
-1 Waboku
+1 Bottomless Trap Hole/Explosive Armour