The summoner name or tag is incorrect
laboonbaboon #whale
SILVER III
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Match History for Patch: 16.6.1
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Champion Stats for Patch: 16.6.1
Champion Mastery
lvl: 13
113,463
lvl: 11
93,134
lvl: 10
80,503
lvl: 9
71,082
lvl: 8
62,082
lvl: 8
60,946
lvl: 8
56,576
lvl: 8
55,492
lvl: 8
53,847
lvl: 7
51,279
lvl: 7
50,993
lvl: 7
49,526