Claydol Solo questions

When i simulated different Claydol runs in Pokebattler, this is my team:

Kyogre - Lv35x4
Mewtwo - Lv35x1
Kyogre Lv30x1

All 5 Kyogres have Hydro Pump, Mewtwo has Psycho Cut/Shadow Ball.

None of the Kyogre are in the lv36 breakpoint.

I found out that i can do Gyroball and Psychic without dodging, but with Earthquake i would lose instantly unless i lead with a Gengar. The Gengar's stats are the following:

Gengar
Hex/Shadow Ball
Lv35

I do not have any eligible Shadow Claw Gengars for now.

And in practice it would be true, as i would had been soloed an Extrasensory/Gyroball one just by spamming Kyogre's moves. However, afterwards i saw a Confusion/Earthquake one and i lost because the Kyogres cannot sustain the charge move flow with or without dodging. I then packed the aforementioned Gengar, it would fire 2 Shadow Balls and for some reason allow me to beat it with little or no dodging.

In all of these cases i would have 6 or less seconds left. It's usually 6 seconds left.

So what is the exact reason that Gengar is especially that important against Earthquake? I've also ran the same set i used for Earthquake vs Extrasensory/Psychic and i would lose, but with Confusion i would win according to it. All simulations assume no dodging, but in practice i might need to dodge some of Claydol's moves.