I believe most AAS increase creatine synthesis, so yeah you can see some increased benefit when combining it with other roids. It's probably just very unnecessary with aromatizing gear since you're getting extra water anyway.
But then again, I've never fully understood why creatine is supposed to be so great with var. People all parrot the same info" "because var increases creatine synthesis," but that little bit of info doesn't mean much to me. Anyone care to offer a little more detail into the effect?