Let me list the issue with each lethality item. short and sweet.

: it's stats are fine apart from the lethality, which is getting nerfed next patch. so, all good.

: meant for assassin's that uses stealth or Prolonged blink(think Zed ult) and not anyone that has high damage that gets' of on how easy it is for them to get true damage. All you have to do is hide in a bush to gain its true damage proc. not think right eh riot?

This is the most problematic of the three. Nerf the damage and/or lethality on this monster and increase the cooldown of the item to 45-50 seconds or even longer. this item is too good right now because of the damage and utility all rolled up into a monster package. Uh and don't get me started on combining this with . Sorcerer's bane indeed.

And lastly. remove the OoC MS for the last two because Youmuu's meant to be MS orientated assassin item.

Peace.