MF-H Variares F:S

This combo seems very powerful, both for reverse and normal rotation, what are your opinions on it?
You need to provide test results also f:s is considered use,ess and while variables was top tier at one point it is not outclassed due to synchromes
I like the idea of both the Wheel and the 4D bottom going from aggressive to passive, but the loss in stamina from F: S activating causes severe stamina loss, which sorta ruins the whole combo.
F:S has never been a competitive 4D Bottom; although VariAres' once had use in Attack combinations, it has since been outclassed by Flash and numerous Synchromes.

In the future, if you want to get combo building advice, use this topic: https://worldbeyblade.org/Thread-Build-me-a-combo-2

And to share combos you think are cool or fun, use this one: https://worldbeyblade.org/Thread-Fun-Combos-thread