Why does Ghostblade give more flat pen than it's component items while Liandry's doesn't?
#Youmuu's Ghostblade 3,200 Gold
- 60 Attack Damage
- 10% Cooldown Reduction
Unique Passive: +20 Armor Penetration Unique Active: Grants +20% Movement Speed and %40 Attack Speed for 6 seconds (45 second cooldown).
#Liandry's Torment
3,200 Gold
- 80 Ability Power
- 300 Health
Unique Passive - Eyes of Pain: +15 Magic Penetration Unique Passive: Spells burn enemies for 3 seconds, dealing bonus magic damage equal to 2% of their current Health per second. Burn damage is doubled against movement-impaired enemies.
Haunting Guise gives 15 magic penetration which means you only get 55 AP, 100 HP, and the second Unique Passive for upgrading it. Meanwhile, Youmuu's gives double the penetration of it's building items. I just think that Liandry's can be underwhelming at times and a small Magic Penetration buff could make it a bit better.
Edit: Okay I think my comparison wasn't the best (so my bad) however the main point of this is to make Liandry's better than it currently is.
and
can potentially mean you're penetrating ALL of a target's resistences. 15 magic pen is effectively superior to 15 armor pen.
passive can burn a lot of hp and its always up. On a dot champion it is even more ridiculous because it stays up while the poison is in effect and then 3 more seconds after. You could take 10% of someone's hp just for hitting them with a spell.
: Build me!
: Can't. I have other things I need to build.

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Is also an assassin oriented item, an ADC building it does not change it's purpose.
while mages
, making it possible to hit levels of pen ad people can only dream of.
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could be something like this
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