Talk:Madred's Bloodrazor/@comment-5190160-20120612135200/@comment-4641298-20120616033050

No, no no no no no no. Why on Earth would you ever get Blood razor on Vayne?

Justitex math is horrendous. If you take the offesnive armour pen mastery + you have LW, you have 46% armour pen. That reduces a 300 armour target, to ~150 armour.

Why the hell would you get bloodrazor? It deals magic damage. It doesn't synergize with crit and attack damage. A 2k health target will take an extra 80 damage with each hit, and if they build any sort of MR, or have mr/lvl glyphys (which EVERYONE runs), it will deal around 40 extra damage. Last Whisper will give you far more damage than blood razor, even if the target is building no armour at all. Base armour for most champions @ lvl 18 is ~80. You reduce that to 40.

If there isn't any significant armour, you can get a Black Cleaver.

Also, Vayne's true damage does 220 damage after 3 hits on a target with 2k hp. Pretty terrible.