The summoner name or tag is incorrect
sponge #chung
GOLD I
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Match History for Patch: 16.10.1
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Champion Stats for Patch: 16.10.1
Champion Mastery
lvl: 33
330,827
lvl: 17
157,913
lvl: 16
148,089
lvl: 15
133,490
lvl: 12
108,415
lvl: 11
94,321
lvl: 10
80,815
lvl: 10
76,747
lvl: 9
75,075
lvl: 9
64,968
lvl: 8
64,478
lvl: 8
58,043