Katarina and Akali
Akali got nerfed because why? Akali was perfectly healthy. Goes in kills a target, stealths. Akali has a q that does 90% ap that only procs off auto attacks. Katarina has a q that scales off 60% ap that can hit 5 targets and procs off a no cast-time aoe ability that also gives her movement speed. Akali has an aoe ability that does little damage and does nothing while also having a cast time. Both have weak laning phases, but only one has an actual resource while the other just has cooldowns. Katarina gets 1 kill with jungler help. The game is over. In 5 seconds Katarina can wipe out 5 people. In 6 seconds Akali can kill 1 and then has to stealth, leaving her vulnerable. Katarina just mashes the E and W keys until all 5 are dead. Katarina's abilities do 375% ap total if each is used once. Akali's abilities do 270% ap if each q and e are used once and if r is used 3 times. She deals 360% if q is used twice. If you mash keys in a random order with akali you won't be able to kill your target. If you mash keys with katarina you will be able to kill everyone. Akali needs timing, Katarina needs a low health target. Katarina's combo, qewreqeqeqeq deals 635% ap total damage if only one target is hit at a time. In reality it will be around or over 900% ap. No mage in the game or ap assassin can match that.