Iron Dominion

Choose any number of metal objects, weapons, armor pieces, mechanisms, or structure sections within range. For the duration, you control them as extensions of your will. Worn or carried metal resists unless its bearer fails a STR save. On a failed save, you may disarm the bearer, halve its speed, impose disadvantage on attacks made with a metal weapon, or impose disadvantage on DEX saves while it wears metal armor until the start of your next turn. As an action on later turns, repeat this control against affected metal in range.

This power has its own stable page so it can be linked from any character, item, location, story post, bargain, curse, or future reward.