It will probably be a very good motivator. But it's difficult to get, so having it a requirement for LFG wouldn't be a good idea. And really, it's ideal for only a couple portions of the raid. There are only a couple spots where the double damage is countered by an immunity bubble. I don't think it'll become a requirement, but people on LFG will take someone who has one before someone who doesn't.

You look cute today

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