The summoner name or tag is incorrect
dog #dog17
EMERALD III
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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: 13
108,873
lvl: 10
84,401
lvl: 9
74,005
lvl: 9
65,490
lvl: 7
52,365
lvl: 6
40,374
lvl: 6
39,021
lvl: 6
37,240
lvl: 6
36,259
lvl: 6
35,168
lvl: 6
34,741
lvl: 6
33,476