FS, Obliterate and Runic Power/Runes

[Morrighan 0]

Hello. I'm having some problems with DK rotation after starting it. I realize that in the beginning, procs are many. But through the middle of the fight, I begin to notice that everything slows down, including the return of runes and loss of Runic Power. Sometimes I do not own a rune, and I have a lot of Runic Power. But if I spend it, the runes are still coming back, and I have nothing to beat. Please help me. This is normal? Should I use FS only when I'm near overcap? Should I wait patiently for the runes to renegate without hitting FS? I have 25% Acceleration, 27% Critical and 42% Mastery. Thank you in advance.

[Browed 19]

You shouldn't be getting rune starved if you have taken Murderous Efficiency as your Tier 2 talent.

If you overflow with RP I would suggest Icy Talons for tier 1 until you get your Antorus armour set bonuses.

Don't forget that FS generates runes through Runic Empowerment so you should not be holding back on FS if you go to zero runes, you should be spamming it for procs.

[Dklegends 3]

When getting above 70 RP, you should frost strike to avoid capping RP, the only exception being if you have Obliteration active, in which case you would disregard over capping to get the KM procs. 

You should also be using frost strike whenever you have nothing else to do, like when you have no runes available. You do this because it ensures that you're still able to pump out dps while your runes are recharging and it also helps you regenerate runes through Runic Empowerment procs (a passive ability that gives you a percentage chance to generate a rune based on RP spent).

There will be times when you have no RP and no runes and this sucks but it is sometimes unavoidable, as sometimes it comes down to RNG.