As a boring killjoy D&D rules lawyer, I might point out that this will definitely lead to “them” winning, since you are killed when you attune, and therefore can never deal the 1d8 bludgeoning + 30d12 radiant damage.
Past a certain point death is a formality in d&d, so I don’t think that’s true.
I thought death broke attunement, and you had to reattune after being resurrected?
You are right, forgot about that. But someone else mentioned already it’s nonmagical so i guess the attunement caveat is just for flavour
Nothing to attune to hear. You clap balls, they die. Anyone can do it!
The effect is not instant, you only day days later. Short term (like a fight) there is no change.
Mmm this is a good interpretation. You get radiation poisoning and only die later. If for whatever reason, this item appeared at my table and we needed to adjudicate this, I would totally accept this reading.