The summoner name or tag is incorrect
thunder #3958
GOLD I
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Match History for Patch: 16.9.1
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Champion Stats for Patch: 16.9.1
Champion Mastery
lvl: 17
156,405
lvl: 9
65,847
lvl: 8
63,298
lvl: 8
61,531
lvl: 8
61,158
lvl: 8
60,190
lvl: 8
59,001
lvl: 7
50,746
lvl: 7
44,842
lvl: 7
44,487
lvl: 6
39,099
lvl: 6
37,283