AP Assassin Item Idea
Numbers and build and stuff are subject to change.
Build: 
+
+ 
+ 565G (Total: 3100G)
Stats: +110 AP, 5% MS
Unique Passive: Bonus MS tripled while out of combat.
Unique Active - Soul Blast: Target Champion gets marked for death for 3 seconds. 20-or-so% of your magic damage against this champion gets converted to true damage (after multipliers). 70 second CD. Range is 250. For context, 250 range is 50 less than Rakan autos.
I think this could be a good item for AP assassins that has a low chance of being abused by mages, mostly because of the range restriction and that it only lasts 3 seconds. My logic to this is that assassins want the roaming power and most, if not all of them have some way to get within melee-ish range to try to assassinate someone, while mages would rather have CDR and risk a lot if they want to use the active. Yeah, it's pretty basic-looking, but it would probably be super effective.
Any thoughts?
would essentially start nailing people before they have time to react. Veigar actually had to have his Q changed into a Skillshot because he heavily relied on DFG and his winrate plummeted Shortly afterward.
As for the Short range & 3 seconds, Annie could hide in a Unwarded bush & just wait for a lowly teemo to walk by before incinerating him in a blink of an eye.
Why I listed Brand is I can see some Brands landing a full combo, running up to a target who has his Passive on them, tagging them with the Item's Active just as the passive explodes & watching their targets HP get eviscerated by %Max HP True damage. The thought of this gives me nightmares.
