The summoner name or tag is incorrect
tyrant #8772
IRON IV
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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: 8
62,706
lvl: 6
33,151
lvl: 6
31,654
lvl: 5
21,634
lvl: 4
19,039
lvl: 4
17,825
lvl: 4
13,375
lvl: 4
13,346
lvl: 3
8,860
lvl: 3
6,275
lvl: 3
6,199
lvl: 3
11,898