The summoner name or tag is incorrect
lv99roidmage #na1
SILVER III
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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: 20
190,333
lvl: 18
167,951
lvl: 13
115,089
lvl: 10
86,492
lvl: 10
81,531
lvl: 9
67,288
lvl: 8
61,986
lvl: 8
57,956
lvl: 8
54,323
lvl: 7
49,556
lvl: 7
46,435
lvl: 7
44,268