The summoner name or tag is incorrect
xdata #na1
EMERALD IV
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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: 93
1,346,505
lvl: 79
867,552
lvl: 37
424,738
lvl: 27
271,363
lvl: 22
221,698
lvl: 17
153,750
lvl: 14
121,609
lvl: 13
117,270
lvl: 11
93,238
lvl: 10
104,652
lvl: 9
82,462
lvl: 9
78,215