A black, fleshy goop keeps your enemy from escaping you.

Encounter   ✦     Acid, Arcane, Weapon
Standard Action      Melee touch

Target: One creature

Attack: Strength vs. AC, Dexterity vs. AC, or Constitution vs. AC

Hit: 1d10 + Strength, Dexterity, or Constitution modifier damage, and the target takes ongoing 10 acid damage and cannot move more than 3 squares from you (save ends both).

Published in Forgotten Realms Player's Guide, page(s) 45.