The summoner name or tag is incorrect
walter #bruno
IRON I
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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: 9
68,092
lvl: 7
49,096
lvl: 6
41,293
lvl: 6
40,496
lvl: 6
34,663
lvl: 5
27,832
lvl: 5
22,354
lvl: 4
21,036
lvl: 4
18,696
lvl: 4
16,776
lvl: 4
14,477
lvl: 4
13,565