The summoner name or tag is incorrect
argumentinvalid4 #na1
GOLD III
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Match History for Patch: 16.6.1
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Champion Stats for Patch: 16.6.1
Champion Mastery
lvl: 63
663,849
lvl: 34
394,535
lvl: 31
358,332
lvl: 14
164,231
lvl: 11
108,594
lvl: 9
77,470
lvl: 9
70,251
lvl: 8
59,508
lvl: 8
56,239
lvl: 7
62,872
lvl: 7
56,226
lvl: 7
48,613