This skill makes it possible for minion bombing builds to operate in areas which do not normally produce enough corpses to support minion bombing, and can allow a minion build to go without minion healing skills by recycling them instead.
It can be effective to cast this on a minion you intend to kill immediately after, with spells such as Putrid Flesh, Taste of Death, or Feast for the Dead. It also pairs well with Bone Minions, as they are actually lower level than the Jagged Horror that would be created with this spell.
Remember that this spell can be cast on Jagged Horrors, even those that were created with this skill. This creates an infinite renewable minion supply, like the Flesh Golem does.
When a Flesh Golem dies with this enchantment on it, it will summon the Jagged Horror and will not exploit the corpse.