The summoner name or tag is incorrect
jetty #6787
IRON I
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Match History for Patch: 16.5.1
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Champion Stats for Patch: 16.5.1
Champion Mastery
lvl: 43
548,430
lvl: 18
203,882
lvl: 11
96,595
lvl: 10
93,868
lvl: 9
75,205
lvl: 9
71,009
lvl: 8
64,114
lvl: 5
39,585
lvl: 4
20,730
lvl: 4
17,378
lvl: 4
15,903
lvl: 4
14,447