Summon Undead spells from Libris Mortis

Actually, the same error was made in "updating" the spells in the Player's Guide to Faerun. The spells, as noted, originated in Magic of Faerun.

The Errata for Player's Guide to Faerun limits the undead you can summon: "No undead creature you summon can have more Hit Dice than your caster level +1."