Platinum Scarf

From Fizban's Treasury of Dragons, page 24.

Description
Wondrous item, legendary (requires attunement)

This scarf is made of sturdy cloth and covered in platinum-colored scales.

As an action, you can pull a scale from the scarf and speak a command word. When you do so, choose one of the following effects:

Breath of Life. The scale disappears, and you or a creature you touch regains 10d4 hit points.

Platinum Shield. For 1 hour or until you dismiss it (no action required), the scale becomes a +1 shield, which you or another creature can use. A creature wielding the shield has immunity to radiant damage.

Radiant Hammer. For 1 hour or until you dismiss it (no action required), the scale becomes a magic light hammer, which you or another creature can use. The weapon deals 2d4 radiant damage, instead of the bludgeoning damage normal for a light hammer. It deals an extra 2d4 radiant damage to chromatic dragons.

Once three scales have been pulled from the scarf, no more scales can be removed until the next dawn, when all the missing scales grow back. If you pull off a scale but don't speak a command word, it disappears after 1 minute.