Oddities With AoE Cones
I don't think many people have really noticed this before, but cone skills acquire targets at the start of cast times, which could lead to disorientation for enemy players. I think it's the most obvious with Darius, I have pulled people in after they have flashed over a wall or teleported away, and it almost always prompts a "wtf" from the enemy.
At first I thought it was just how Darius's pull was coded, but now that assassins have flooded mid lane I've been taking Cho mid for his silence. Even with that I've started to notice the cone affecting people that shouldn't be hit, like casting the silence just as kat shunpo's behind me, or even her getting hit as she shunpo's out of vision range.
Now I don't know if any other champions have a long cast time attached to a cone ability (Annie and Morde's cast times are very short in comparison) but I think this gameplay discrepancy should be fixed before it becomes problematic. I mean I'll miss killing people that flash a mile away with my scream, but if that means I can get a minor range buff on it (just so I can hit melee and range minions with one cast) I would be alright with it.
Edit: The only reason I don't bring up how every other targeted ability interacts with flash is just because those aren't ground targeted. Comparing them to other ground targeted AoE abilities, if you were to walk out of Brand's pillar of flame indicator, you can expect to not get hit, yet if you flash after Darius brings out his axe but before he pulls it, it still counts you as in the area.