The summoner name or tag is incorrect
shadowtk #5794
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: 28
275,235
lvl: 15
133,159
lvl: 13
114,598
lvl: 10
83,472
lvl: 9
70,514
lvl: 9
65,215
lvl: 7
69,504
lvl: 7
45,819
lvl: 6
47,684
lvl: 6
40,901
lvl: 6
36,045
lvl: 6
35,208