Just a method to consume corpses with useless critters. I think the idea was to prevent
Meshif's Iron Parrot
Meshif's Iron Parrot Throwing Knife (Sacred) Throw Damage: (167 - 183) to (230 - 295) One-Hand Damage: (126 - 137) to (187 - 247) Required Level: 100 Required Dexterity: 402 Item Level: 105 Dexterity Damage Bonus: (0.11 per Dexterity)% +8 Storm Crows Projectiles After Being Struck +1 to Assassin Skill Levels Adds 40-(101 to 150) Damage (16 to 20)% Life stolen per Hit +(140 to 170)% Enhanced Damage +(51 to 75) to Dexterity 25% Reanimate as: Parrot (Critter) (20 to 30)% Gold Find (25 to 40)% Magic Find Socketed (2)
and
Ligeia
Ligeia Assassin Shields 'OhnUn' Runeword Level: 115 +6 Life per Cognition +4 to Assassin Skill Levels -4% Base Block Chance 50% Hit Recovery +(20 to 30)% to Physical/Magic Spell Damage +150% Enhanced Defense +5000 Defense (7 to 10)% to All Attributes +(130 to 150) to Energy Elemental Resists +(20 to 25)% Physical Resist 5%