The summoner name or tag is incorrect
leopard #5805
IRON I
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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: 6
37,483
lvl: 5
22,724
lvl: 4
21,192
lvl: 4
18,144
lvl: 4
16,726
lvl: 4
15,021
lvl: 4
12,725
lvl: 3
9,172
lvl: 3
7,144
lvl: 3
6,987
lvl: 3
12,284
lvl: 2
5,054