Name a bunch of things that only make sense using Riot logic... I'll start
Although this does true damage, it's initial purpose is to simulate a "burning" effect on an enemy champion. Why does ignite burn fire-based champions, i.e. 
instead of healing them?
Side note: Will Riot ever invent a summoner spell that has dual effects depending on ally or enemy target?
malphite gets turned into stone, fizz jumping into the air makes him immune to fucking everything while flying champs can still be hit,all the dashes that allow you to phase through walls like they dont exist,nami w can heal brand, u can buy 6 giant swords on 
who has 3 arms, the list goes on and on
Bear Traps can snare floating/flying creatures. Ahri regrets stealing souls but still does it in game. Jinx is a rail thin girl that is somehow strong enough to carry a full arsenal.
My favorite will always be max size Cho'gath hiding in a brush
Braums big ass shield of legend is weaker than yasuo creating a wall of wind
