Dat Riot logic
Remove DFG because it makes assassin's oppressive.
Put in Luden's which is DFG 2.0. Can do up to 1k AoE damage to team late game where DFG was lucky to do more than 400 to a single target then boost damage and had a CD. Luden's is solely capped by how fast or how many abilities you have and how low CD they are and how many gap closers they have.
Luden's also add's more MS to champs that tend to be very mobile anyways. On top of this its 120 AP. Just because DFG had 120 doesn't mean Luden's should too. It could of easily started out at 100 AP because of how strong the passive is. The AoE damage at purchase is about 125*5 and isn't really a restricted by AS its restricted by CDs which makes rapid fire bursters even worse. You can potentials get around 5+ Luden's off in the time you got 1 DFG shot.
Putting in a passive to replace an active is dumb especially when the active was on a decent CD.
(Vayne even though I could beat her in a duel) and it was insane.
I shall never go back...