The summoner name or tag is incorrect
cloudfield #001
EMERALD IV
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Match History for Patch: 16.10.1
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Champion Stats for Patch: 16.10.1
Champion Mastery
lvl: 38
392,437
lvl: 29
291,684
lvl: 24
238,653
lvl: 18
174,201
lvl: 18
166,074
lvl: 17
161,790
lvl: 17
156,092
lvl: 16
150,221
lvl: 16
149,947
lvl: 15
155,032
lvl: 14
126,959
lvl: 14
125,522