Originally Posted by FightF4te
A good Phantom Assassin would have BKB too. Countering Sven's stun. It's complicated.
If PA has the lifesteal from HoD or Satanic and procs that critical. GG.
Sven can have that satanic as well. With equally expensive item builds, sven just simply out-DPSes mortred, but that's not even the situation we're discussing. OP was trying to find some way of countering a gank by sven + wisp, and there's no single hero who can turn that fight around and win it. A mortred simply can't kill an equally equipped sven during her 10 seconds of BKB, it is not possible at all. She can at most survive by blinking stuff.
No, a few crits is just not enough, you'd need an abnormally large number of crits (e.g. be very lucky, but that can just as easily backfire by getting no crits at all) to match sven's damage.
The problem here being that it may be 2v1. It's better to just suggest some assist from allies.