The summoner name or tag is incorrect
crow #rain
SILVER III
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Match History for Patch: 16.6.1
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Champion Stats for Patch: 16.6.1
Champion Mastery
lvl: 96
1,026,315
lvl: 9
74,276
lvl: 8
57,681
lvl: 6
38,748
lvl: 6
36,436
lvl: 6
35,115
lvl: 5
31,596
lvl: 5
28,250
lvl: 5
24,949
lvl: 5
24,556
lvl: 5
23,959
lvl: 5
23,521