The summoner name or tag is incorrect
buna #705
GOLD 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: 54
640,663
lvl: 20
192,279
lvl: 14
130,016
lvl: 13
112,036
lvl: 8
62,145
lvl: 7
51,588
lvl: 7
47,895
lvl: 7
45,621
lvl: 6
32,460
lvl: 6
32,043
lvl: 5
31,098
lvl: 5
26,645