Scythe of Elune talents are nowhere close to finished - that's obvious by Moon & Stars being 100% useless if you take Collapsing Stars as your level 100 talent. Blizzard does some dumb things but the end-game portion of our artifact tree isn't going to be made completely irrelevant by (IMHO) our most interesting level 100 talent.
You say that but if the idea is for Collapsing Stars to be some kind of ranged arcane version of Breath of Sindragosa I wouldn't be surprised if they're not specifically designing the class or the weapon with it in mind. The different dk specs have gone through a lot of sneaky clever uses of game mechanics just to make BoS relevant, with the only spec that seems to have direct support for it being blood dk and their multistrike bonus passive and the (now removed) chains of ice glyph and the other specs having to do some really dumb shit like chain resetting bosses to start the fight with full rp, or finding a source of magic dmg to ams soak for rp before a pull.
tl;dr I hope this is more fleshed out than BoS was initially because it seems like it has a lot of potential, but I'm pretty cynical.
Yeah I get the whole BoS comparison but I was under the impression that a big shift in Legion was about simplifying base rotations and making talents (and artifact talents) interact with the base rotation & each other to create meaningful playstyles. That talent needs to see a change to actually impact the CS playstyle - otherwise it's wasted talent points in that playstyle. If CS ends up BoS-style then make the talent reduce the AP consumption of CS by X% (and I would say start with something hefty like 20% that reduces by half for every 2s CS remains active) or if CS is Arcane-missles-style channeled make it increase the channel speed.
Maybe if we're lucky we'll get some answers with the next alpha build.
So far the only way to cheese AP regn. is Prepull generation and Shooting Stars. Shooting stars requires multiple targets, which doesn't happen a lot at the same time you'd want to CS, and it's not likely it will give enough AP to extend it by more than a few seconds anyway. Knowing how dumb prepull generation of resources have been in the past, I have faith in blizzard to fuck this up royally (have fun looking for critters before each Baleroc pull).
The Boomkings(WIP) :: YouTube Project
The Boomkings(WIP) :: YouTube Project
TBH i'd rather have everything decay... Do you really want to go back to cata where you found critter in firelands to build up eclipse?
Dude calling it now Boomkin is going to blow fking bosses up LOL! owlkin frenzy procs randomly gg I like the talents because there is so much choice ;-;, I can't wait to see the math on collapsing star
Hopefully if there is some wonky pre-pull AP generation necessary we can be loud and obnoxious about it during beta and get it changed. Wouldn't be the first time some awful mechanic has made it past beta feedback though.