Burden (3.5e Spell)

This spell saddles its target with a magical encumbrance, increasing its effective load and causing it to become sluggish and unresponsive. The affected creature's load becomes heavy and increases to the minimum weight necessary for the target to achieve a heavy load. The creature suffers all the penalties associated with carrying a heavy load (see Carrying Capacity). If the creature's load is already heavy, it instead becomes over-encumbered, loses its Dexterity bonus to Armor Class and can only move 5 feet per round as a full-round action until its real load decreases to medium or less.

Burden is considered a curse and cannot be dispelled, but it can be removed with a break enchantment, feather, limited wish, miracle, remove curse, or wish spell.

Burden counters and dispells feather.