Where's Smite Spell from? Keep in mind, Dragon Magazine is banned.
If you're talking about the Sharn that's black and that has dual arcane/divine casting actions, that's banned too.
EDIT: nevermind, found the Smiting Spell in PHBII. Yes, this one might work as a combat prep (and quite nicely at that, as I'm in control as to when combat starts, at least in this campaign), but not that well during combat. Charnel Touch is out, too. Still, a nice ability, thanks. Not sure how would it work with haste, though, unless you're talking 3.0 haste.