The summoner name or tag is incorrect
december21 #2012
EMERALD IV
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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: 12
100,262
lvl: 8
56,022
lvl: 8
53,920
lvl: 7
44,942
lvl: 7
44,358
lvl: 7
43,102
lvl: 7
42,751
lvl: 5
29,027
lvl: 5
27,953
lvl: 5
26,737
lvl: 5
25,073
lvl: 4
20,495