When you are reduced to 0 you can use the volatile power of the sun and roll a 1d10. Each hostile creature within 30 ft must make a Dex save DC 8+prof+dexmod taking boom damage equal to your level times the roll on a failure, half on a success. Each creature killed by this explosion gives you 1 hp. Once you use this ability you cannot activate it until you take a short rest. He must buy more explosives after each use.
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