The summoner name or tag is incorrect
chadiator #main
PLATINUM IV
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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: 50
662,519
lvl: 46
552,463
lvl: 29
290,986
lvl: 28
282,594
lvl: 27
286,087
lvl: 16
150,049
lvl: 10
102,382
lvl: 9
73,926
lvl: 8
61,862
lvl: 7
52,315
lvl: 6
32,506
lvl: 5
30,013