The summoner name or tag is incorrect
wings #020
IRON I
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Match History for Patch: 16.9.1
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Champion Stats for Patch: 16.9.1
Champion Mastery
lvl: 8
58,672
lvl: 7
45,593
lvl: 6
39,823
lvl: 6
38,815
lvl: 6
35,471
lvl: 5
23,917
lvl: 5
22,598
lvl: 4
20,899
lvl: 4
17,793
lvl: 4
15,711
lvl: 4
15,106
lvl: 4
12,840