Just ban Fiddlesticks from ARAM
Fiddlesticks in ARAM is: Amazing on your team. Horrible to play against.
ARAM Build. Max your E with every point possible. Take clarity and mark. Morellonomicon, Deathcap, Mpen boots, Voidstaff, Zhonyas, Ludens Echo. Press E on the last minion. Repeat.
0 risk. Tons of reward. 0 Mechanics.
I think people agree. Sry bud. 
is another offender due to his AP for hitting stuff passive that everyone forgets about.