The summoner name or tag is incorrect
dusk #0128
PLATINUM 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: 38
386,742
lvl: 23
227,643
lvl: 13
110,608
lvl: 12
108,080
lvl: 8
58,461
lvl: 7
52,623
lvl: 7
52,472
lvl: 7
51,573
lvl: 7
50,439
lvl: 7
47,641
lvl: 6
42,565
lvl: 6
38,874