It's not fun :{

If this is your Clash Royale account, link the tag to your CrownStats profile to run Battle Insights, Crown Score and Crown Coach on your own recent battles, deck and card levels — CrownStats' own analysis, with every method and limit stated.

• Battle Insights
• Crown Score
• Crown Coach

CrownLab is CrownStats' analysis layer — every tool states its method and limits on its page.