Paroxysm

Psionic tremors course through your body and you have learned how to control and transfer them onto objects. You gain the following benefits:

• Increase your Constitution score by 1, to a maximum of 20.
• You can use an action to cause a tiny nonmagical object that you are holding to begin vibrating and shaking. It does so for 1 hour or until you decide to stop it (no action required). For the purposes of throwing, it has a normal range of 60 feet, as psionic energy helps it glide through the air. When the vibrations stop, the object explodes violently, shedding bright light in a 10-foot radius and dim light for an additional 10 feet and emitting a thunderous boom audible out to 100 feet. The maximum number of objects you can affect with this feature at one time is equal to your Constitution modifier (minimum of one object). If you try to exceed your maximum, the oldest object explodes, and the new object begins shaking.
• You can use an action to expend two Psionic Energy dice and imbue a tiny nonmagical object with an intense amount of psionic energy. The object begins shaking violently for 1 minute or until you decide to stop it (no action required). For the purposes of throwing, it has a normal range of 60 feet, as psionic energy helps it glide through the air. When the vibrations stop, the object erupts in a massive sonic boom that sheds bright light in a 20-foot radius and dim light for an additional 20 feet and can be heard up to 300 feet away. Each creature within 20 feet of the object must make a Constitution saving throw (DC 8 + your proficiency bonus + your Constitution modifier). On a failed save, the target takes 2d6 thunder damage and is stunned until the end of it’s next turn. On a successful save, the target takes half as much damage and isn't stunned. The damage of this explosion increases by 2d6 when you reach 5th level (4d6), 11th level (6d6), and 17th level (8d6). You can only have one object active in this way at a time. The first time you take this action after each long rest, you don’t expend the Psionic Energy dice. All other times you take this action, the dice are expended.