The scale allows you to alter your appearance based off of age. You may appear older or younger than your actual age. You stop aging and require no food or water.  You can choose to be magically aged or not.

• You cease to age.
• Whenever your age would be altered by any effect, you choose whether or not it succeeds.
• You gain advantage on initiative rolls as long as you are not surprised.

Time Slipping. The scale allows you to alter your appearance to appear older or younger by up to half your actual age as a free action.

Rewind Time. On your turn, you may end any one effect on yourself, requiring no action. Once you use this feature of the time dragon scale, it cannot be used again until the next dawn.

Fixed Point. When roll a D20, you may choose to replace the result on the die with a 10 after you roll the die, but before the outcome is determined. Once you have used this feature of the time dragon scale twice, it cannot be used again until the next dawn.

Not Your Time. If you would die, you instead gain one level of exhaustion and recover half your maximum hit points. Once you use this feature of the time dragon scale, it cannot be used again until the next dawn.

Temporal Manipulation. You may cast the haste, longstrider, and slow spells three times each per day without expending a spell slot and requiring no components. Once per day, you can cast the modify memory spell as described in this feature. The DC for saving against spells cast using this feature is 21. 

Spend Time Wisely. You may, once ever, expend all the remaining temporal energy in the scale to end all effects on yourself and instantly gain the benefits of a long rest, no action required. When you do so, the scale turns a dull grey and dissolves into fine ash. It cannot be restored by any means, even a wish spell.

Notes: Advantage: Initiative