Does the 300 point version of avxG001r Dark Phoenix Cyclops have a pulse wave of 6?

If you mean, "does it deal 6 damage with pulse wave," the answer is no.
Dark Phoenix Cyclops will deal it's full damage value if there's only one character in the area of effect (as normal,) or will deal damage equal to 7 - his click number, to a minimum of 2, if there is more than one character in the area of effect.

The 300 point dial starts on click 15, so it will only deal the minimum damage of 2 when targeting multiple characters with pulse wave.