The summoner name or tag is incorrect
loe #0000
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: 34
345,337
lvl: 32
330,804
lvl: 19
179,090
lvl: 17
162,894
lvl: 13
115,708
lvl: 12
101,277
lvl: 9
74,500
lvl: 9
73,903
lvl: 9
73,268
lvl: 9
72,124
lvl: 8
61,496
lvl: 7
53,266