xenon total dmg vs attack

welp my weapon has 65% boss and a 9% att
my secondary has 75% boss and 9% dex
and my hybrid heart as it atm has 9% TD 6%att

Ideally for a Hybrid Heart, try to land at least one line of %ATT, and two lines of something relevant (whether it be another line of %ATT, %Ignore, %Total, or %Stat). While %Total Damage is not as helpful for a Xenon in comparison to other potential lines, I don't think it's fair to completely disparage it, seeing how it DOES contribute toward an increase to your damage. Don't be mislead that %Total Damage "sucks", but rather, see it as something supplementary; secondary to what can be more beneficial (e.g. %ATT).

Honestly though, cubing is expensive. Stick with whatever potential lines you feel will be most helpful to you. Sometimes it's not worth dishing out extra nx for a minimal increase in damage.

well i know its expensive that why i go with a philosophy that i save up mesos for a while and then i buy a big chunk of nx at the right time
so upgrades arent coming in a continous effect but rather in a episodic fashion
atm i do believe upgrading the 6% attack like to 21+ will be benefitial