User blog comment:JBox2D/Tank killers/@comment-4881935-20140224202800/@comment-24090662-20140224224917

So what I'm getting is that they'd have to be low base damages, high ratios, and low cc, so that they have to build squishy to be scary?

Yes, being a tank killer makes it very hard to counter build you. Assuming they're pitifully squishy, the "counter build" would be to try to outdamage them, but that means you're taking more damage from the rest of their team. The trouble is that they're the exact opposite of normal counter building.

As the game is now, if you want to counter buid to take less damage, you build defensive. Against someone like this, if you want to counter build so that they kill you less quickly, you have to build offensive.