Have been playing NF with my Rit for a while and came across a few new NF skills for Rits which I are pretty good. So the build is:
Rt/Me
Channeling 16
Spawning 13
(the rest is in Inspiration or whatever)
Weapons - no matter, coz u'll b holding ashes.
Armor - the one with enegry bonus.
Skills:
Renewing Surge
Splinter Weapon
Warmonger's Weapon
Arcane Echo
Renewing Memories
Attuned was Songkai (E)
Mantra of Concentration
Rez sig
Usage:
- Start with Attuned was Songkai. Use Mantra of Concentration to prevent it from being interrupted.
- Cast Renewing Memories. Now all ur weapon spells will cost 75% (44% from ur elite + 31% from Renewing Memories) less energy (which is a good thing, right?

).
- Use Arcane Echo and then Warmonger's Weapon on ur warriors (prefferably sword/axe builds with Frenzy/Tigers Fury). This weapon spell will last in 16 sec (with recharge time of 20) and it will interrupt targets who are NOT attacking. Knowing that casting spells is not concidered as attaking makes this wapon spell a fine caster interrupt + it will also interrups skills like preparations, signets, touch skills (at least I think it will), troll urguent, etc. Weapon spells cannot be stripped off like enchantments, so the only thing u have to think about is to keep ur warriors (or rangers/assassins if u use that spell on them) blind-free.
- Use Splinter Weapon on ur warriors for additional dmg + AoE splinter dmg. With 5 sec recharge it is a good candidate for spamming.
- Use Renewing Surge to support ur warriors in dmg dealing (or spikes in general). This skill will recharge instantly if ur are holding an item, which u do, so u can spam it like hell (costs 5 energy, but with ur elite on will cost only 3 or so). The primary function of this build is to cast weapon spells on warriors though, so dont loose ur head by trying to nuke every enemy in sigt

.
Another version of this build will be going Rt/R:
Renewing Surge
Splinter Weapon
Warmonger's Weapon
Wailing Weapon/Ancestor's Rage
Renewing Memories
Attuned was Songkai (E)
Serpent's Quickness
Rez sig