[{quoted}](name=Axel DC,realm=NA,application-id=cIfEodbz,discussion-id=tsvryAAZ,comment-id=0001,timestamp=2015-04-24T16:00:48.111+0000)
wrong, build it 3rd and LW 4th against a heavy tank team.
It's more efficient to build shiv/pd second because of the crit %
You want the last whisper 3rd unless they're completely itemized into magic resist. BotRK passive is pretty crappy against tanks if they build armor and you don't have pen.
Honestly though if you really want to kill midgame tanks you should build BotRK + Yoummu + LW, or just play Vayne. IE builds take awhile to kick in, especially in this meta.