Description: Thunderstone Grump is a charming, fist-sized rock, distinguished by the whimsical angry face drawn on it with a black crayon and the playful blue lightning bolts adorning its sides. Despite its humorous appearance, the rock is surprisingly heavy and well-balanced, making it an ideal throwing weapon.

Properties:

• Throwing Weapon: This enchanted rock can be used as a ranged throwing weapon. It inflicts 2d4 bludgeoning damage on a successful hit, comparable to standard martial ranged weapons in terms of damage.
• Stunning Impact: Upon striking a target, the target is required to make a DC 10 Constitution saving throw. Failing this save results in the target being stunned until the end of its next turn. This effect represents the unexpected shock and disorientation from the rock's impact, enhanced by its magical energy.
• Frequent Use: The rock's enchantment allows its stunning effect to be used up to 10 times per day. Its magical properties are renewed at dawn each day.
• Recovery and Reusability: After being thrown, Thunderstone Grump can be picked up and reused. The rock retains its magical properties for each use within its daily limit.
• Semi-Sentience: The rock exhibits signs of semi-sentience, likely due to the magical energy within it, occasionally vibrating or warming slightly in one's hand.

Lore: Thunderstone Grump was crafted by a dwarf sorcerer as a plaything for his young son. The sorcerer, known for his fondness for both magic and traditional dwarven craftsmanship, wanted to create something unique and entertaining for his child. He imbued the rock with a fragment of elemental magic, never anticipating that this simple toy would become a valuable tool for adventurers.

The boomerang is a ranged weapon, and any creature proficient with the javelin is also proficient with this weapon.

On a miss, a boomerang returns to the thrower's hand.

Notes: Damage: Bludgeoning, Range