The summoner name or tag is incorrect
drowzey #000
PLATINUM II
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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: 19
174,677
lvl: 17
194,173
lvl: 15
158,468
lvl: 14
147,533
lvl: 13
126,268
lvl: 12
105,074
lvl: 11
97,013
lvl: 11
86,772
lvl: 10
81,378
lvl: 10
78,622
lvl: 10
106,149
lvl: 9
73,437