The summoner name or tag is incorrect
cresc #night
EMERALD II
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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: 49
510,889
lvl: 24
233,911
lvl: 20
238,878
lvl: 20
192,647
lvl: 15
140,931
lvl: 13
117,417
lvl: 11
90,921
lvl: 8
62,991
lvl: 7
47,645
lvl: 6
40,318
lvl: 6
39,538
lvl: 6
39,486