Tyranitar the Supreme Counter to Gengar and Alakazam?

I just tried a solo raid3 vs Gengar. Since I have 5 Tyranitars over level 30 with Bite / Crunch or Bite / Stone Edge, I figured I had a good chance.

But when the Gengar or Alakazam has Focus Blast, watch out! That move easily KO's any Tyranitar since it has a double weakness to fighting. This makes a huge difference, and I don't think Tyranitar is such a supreme counter when Gengar or Alakazam has Focus Blast.

It took me 4 tries, but I was able to beat the Gengar by figuring out how to dodge Focus Blast. I used a level 38 Espeon with Confusion / Psybeam and 3 Tyranitars with Bite / Crunch. The trick is not wasting too much time dodging Focus Blast that you run out of time.

So what is the Supreme counter for a Gengar or Alakazam with Focus Blast? I don't think there is one.