The summoner name or tag is incorrect
baluki #1760
SILVER II
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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: 10
83,425
lvl: 9
83,808
lvl: 9
70,764
lvl: 9
66,042
lvl: 8
59,299
lvl: 8
56,562
lvl: 8
55,007
lvl: 7
53,401
lvl: 7
51,616
lvl: 7
51,382
lvl: 7
48,860
lvl: 7
46,066