From publisher blurb:
Manavores provides 16 new and strange monsters for use with the Shadowdark RPG and other Old School RPGs.
All the creatures herein are manavores, which eat or absorb magical energy and convert it to other sorts of magical or non-magical effects.
All originate in areas of high concentration of magical power, and so can readily be found in just about any dungeon or area of high native magical or extra-planar power.
Charm Cat – these felines possess the power to charm creatures into service.
Dweomer Dog – these dogs absorb magic and provide it for their master’s use.
Enchantment Eater – these chimerical creatures consume and destroy magic.
Glamour Bug – these insects use their glamour to drain spellcasters of life.
Heka Hound – these dogs are used to hunt spellcasters and magic monsters.
Hexrat – these rats are carriers of baleful magic in the form of curses.
Hypno-Ooze – these oozes absorb magic and exude hypnotic patterns.
Incantarnate – these living spells seek out spellcasters to feast on their magic.
Mana Mite Swarm – these swarms drain magic from items and spellcasters.
Mana Moth – these giant moths eat magic and excrete it in magical dust.
Necrotoad – these giant toads swallow the living and spit out undead.
Phantasmic Presence – these strange entities are only quasi-real.
Pishogue Pig – these swine absorb curses and harmful spells for their master.
Spell Slug/Snail – these giant gastropods eat magic and expel it in pure form.
Witching Wolf – these beasts provide allies with power and protection.
Wizard Worm – these tiny annelids provide magic power at a cost…
AND NOW, A WARNING: My Shadowdark products add further level of complexity to the rules and to play than a typical Shadowdark player might desire. The difference in complexity is about that between the Basic rules of a game and the Advanced rules. DO NOT BUY THIS PRODUCT IF YOU ARE NOT INTERESTED IN FURTHER COMPLEXITY IN YOUR GAME. YOU WILL BE DISAPPOINTED!