The summoner name or tag is incorrect
nack #0037
MASTER I
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Match History for Patch: 16.4.1
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Champion Stats for Patch: 16.4.1
Champion Mastery
lvl: 86
919,518
lvl: 22
250,006
lvl: 17
183,019
lvl: 16
180,377
lvl: 13
127,582
lvl: 12
155,849
lvl: 10
85,940
lvl: 10
76,021
lvl: 9
79,540
lvl: 9
73,947
lvl: 9
71,956
lvl: 9
71,029