Forum talk:Neekerivittu/@comment-7006769-20130331192616/@comment-7627698-20130402003425

It's a great "off-damage" item. One or two BT's will remain your main source of AD - the BOTRK is just there for its interaction with the ulti. It gives you an edge in these times of Warmog-stacking. It doesn't replace BT's, though. It gives far too little AD and the attack speed is a somewhat wasted.

You'll want something like: Boots of choice, HP item of choice(Warmog, Randuins, or Mallet), a "special damage item" - BOTRK/BLack Cleaver/Maw of Malmortius... And then you'll generally want two BT's and a Last Whisper for the maximum amount of AD and Armor Pen.

The "special" items are there to grant you an advantage against certain team comps. If they have lots of AP damage, building an early Hexdrinker into a Maw might be more useful than all-out damage.

If the enemies are building early armor, a Black Cleaver will allow you to shred off most of it while also granting you HP and CDR - all of which are great stats to have on Zed.

BOTRK will grant you a much stronger ultimate and counters HP stacking - which nearly everyone does nowadays. It's such a great item late-game that you may want to sell one of your BT's just to get the activation. It increases the chances of your ulti being a kill by quite a lot.

Build what you prefer. BT is a great rush. BOTRK is slightly risky because your output without the ulti becomes rather weak until you get some additional AD.