The summoner name or tag is incorrect
spellchucker #5000
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: 29
285,090
lvl: 19
183,244
lvl: 14
123,853
lvl: 6
31,930
lvl: 5
27,752
lvl: 5
26,442
lvl: 5
25,306
lvl: 5
21,624
lvl: 4
13,890
lvl: 3
8,205
lvl: 3
7,786
lvl: 3
7,651