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I need help. I know there was a numbers squish with the new expansion but I feel like I am missing something else. In Legion I was reaching 60+ percentile but now I'm lucky if I break 30th percentile.

Logs: https://www.warcraftlogs.com/reports/67TZvPXY3crFfC2N

Just looking for someone smarter than me that can find what I'm doing wrong on some of these fights.

It's mainly about not using your CD's effectively. You have a lot of unused Rune of Powers for instance. Your Water Elemental was set on Passive. You are talented into Living Bomb on ST fights, etc.. I would highly suggest you check out some guides on talents, CD usage and general rotation so you can have a more polished style. You are doing overall fine, but since you lose chip damage all around, it adds up!