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Which androids can use beryl heart?

I am not sure, the Beryl Android is the only one that says it can, so I'd guess just that, which is, unfortunately, tradeblocked, but none of the androids state they can use the Superior Lidium Heart when I would guess they could, they do mention the Lidium Heart though, so it might just be an extension of that. I think, possibly, the grade variable on Androids and Hearts determine it, so as long as your Android's grade was higher than the Heart's grade, you can use it, in which case the Beryl Heart grade is 5, which is the same as Crystal Hearts, so anything that could use a Crystal Heart could possibly use a Beryl Heart.

But, you'd probably get a more definite answer from someone who has a Beryl Heart.