ranked games

i recently played some rankeds.in the first problematic game i had as supp blitz.25 sec until game starts.after 10 sec i looked again:blitz changed in fizz.everubody was like LLLLLLLLLLLLOOOOOOOOOOOOLLLL.win plus 10 lp in gold 4.very fair.when i played the second one i realized it was no mistake on my mastery bcs i had bloodlust instead of thunder.and i looked befor game all the time at mastery to be shure it isnt my fault. fix this !