The summoner name or tag is incorrect
ons3t #na1
PLATINUM III
-
Match History for Patch: 16.4.1
-
Champion Stats for Patch: 16.4.1
Champion Mastery
lvl: 30
302,609
lvl: 24
236,609
lvl: 18
170,692
lvl: 15
150,115
lvl: 13
111,821
lvl: 13
109,643
lvl: 13
109,004
lvl: 12
100,084
lvl: 11
94,796
lvl: 11
93,853
lvl: 11
90,018
lvl: 10
86,522