Magma Core Undead

From publisher blurb:

Originally created by a powerful necromancer with a propensity for arson, magma core undead are the product of a unique ritual. This ritual requires the caster to magically place a core of magma inside the corpse they wish to raise as an undead. If successful, the process amplifies the normal necromantic rituals for the creation of undead, resulting in a creature that burns with the life of the molten earth itself.

This PDF contains a new undead monster template and the lore behind its origin, the stats for two such creatures, the magma core skeleton and magma core zombie, and the spell used to create them.