User blog comment:Fistful of Force/Warmogs is now my go to defense item/@comment-4127962-20130121223109/@comment-5038450-20130122141530

BotRK is actually strong, just underused, and it reduces the burst on AD casters in comparison to BT.

But on tankier champions, like Riven, it's actually great since the sustain it provides is incredible.

That aside, BotRK doesn' really counter Warmog's.