Maximum Rebuke!

[TheLooker]

Are there items, spells, feats, prestige classes ect. that will increase the amount of undead I can control with the rebuke ability? What could I get to maximize this?

[Rosalinath]

oh dear..i dont have my books on me right now, but let me ramble off some i remember:

deathbound domain double rebuke/command hd limits, rod of the netherworld does the same and i believe they stack.

any class with rebuke as an ability (dread necromancer, evil paladin varients, etc) effectively double your hd limit, and can argueably be affected by the above as well.

beyond that there are bonuses to undead beyond hd that help necromancers, though linking to a handbook would be the better option for that