This is a [Titania] build built for maximum razorwing uptime with the drawback of being squishy.
You could swap [Flow] for an EHP mod I guess, however the 50% evasion in razorwing paired with the 40% DR whilst airborne from [Aviator] and also if you need to the 50% DR from Thorns should give a theoretical DR of 95% which is tank enough most of the time.
You could, with max energy and no energy orbs collected throughout, stay in razorwing for roughly 6 minutes.
Assuming you are already in razorwing and don’t need to spend (on this build) 6.25 energy to enter it, then each energy orb gives you 20 seconds of razorwing, which I think is pretty ok considering that you can get quite a few in a short time whilst massacring with the [Dex Pixia]. [Dethcube] with [Energy Conversion] can help too.
And of course if you have another ‘frame in your squad that can give you energy then of course you will barely have to worry at all.
I know I should have included [Razorwing Blitz] somewhere but I didn’t because I won’t myself be able to get it for ages