Highly doubt it'll be one per character. Wouldn't make much sense
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It'll be 2 etheric lights per character
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1 at rank 3 and 1 and rank 5. Makes sense to me.
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Not to me considering it's rare enough already
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Exactly. That's the point. If I only get 4 per Trials (flawless)why would I be able to get more from an easier activity like Iron Banner.