Talk:Tryndamere/@comment-79.169.180.33-20110703191256/@comment-3486816-20110706072203

They also take up two item slots for potentially less penetration. Youmuu's + BC is 65 Armor pen, if your enemy has 162 armor or more you'll penetrate more armor with just a Last Whisper. Not to mention it's cheaper than both of those items. Both ARE indeed great for other reasons too (especially Youmuu's, the active is godlike with his ult), but if you're facing a rammus, just the active on his Defensive Ball Curl will make Last Whisper more effective than both those items together in terms of armor pen. Other armor stackers (which should be somewhat common against a good trynd) will create similar problems.