Boots of the Iron Giant

Boots of the Iron Giant
Wondrous item (15,000gp)

Stealth

 * Disadvantage

Restrictions

 * Once per long rest

Duration

 * 5 minutes

Active

 * As a bonus action alter your weight up to an extra 300kg. You do not feel the extra weight and move as normal. You are completely immovable by anyone who's strength score is lower than 20. Anyone attempting magic in order to alter your position must make a Wisdom saving throw of 15 or above.

Extra

 * You can also as long as at least one foot is on the ground increase your weight an extra 300kg for 30 seconds.