The summoner name or tag is incorrect
ampro #2549
BRONZE III
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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: 45
480,104
lvl: 32
331,793
lvl: 12
106,260
lvl: 10
111,520
lvl: 9
74,020
lvl: 9
69,936
lvl: 9
68,260
lvl: 7
47,723
lvl: 7
43,288
lvl: 6
40,834
lvl: 6
36,506
lvl: 6
35,200