The new Necrolord Legendary -
분리된 정령 - is thematic, though upon release numerically underwhelming
The legendary is a weaker cousin of the Anima Power
쪼개진 정령의 막대, providing half the benefit. Its best case use scenario is one where we'll consistently have 3-4 targets with
화염 충격 active when we proc it.
To get an idea of the expected power level of this legendary without sims to assist us, we look to the only legendary that provides a similar benefit,
선조의 계고, and a bit of napkin math (elongated form of said napkin math can be provided upon request, though this comparison will be slightly tilted in favor of
분리된 정령). In an ideal scenario (always 4 targets when you proc it),
분리된 정령 provides an average of a ~4.3% Haste Buff. Compared to
선조의 계고, which will give slightly different benefits based on the length of the fight in question though I'll use 5 minutes for this comparison (average sim length) which gives us an average of a ~4% Haste Buff.
In a Mythic+ scenario, we expect
선조의 계고 to give us a ~3% overall dps boost as it stands, and so we can expect that
분리된 정령 will give us somewhere in the neighborhood of a ~3.5% boost that could be bumped up as far as 4.5% or so through use of the
격동의 물결 conduit. As a result, considering that
세계의 분리의 메아리 is gives us close to a 20% boost in a similar scenario, there's little chance we'll use this legendary as it stands. Even if it were buffed significantly so that its ideal use case were to compete with
세계의 분리의 메아리 for AoE (which would require at minimum somewhere in the neighborhood of a 200% to 300% buff), then it still wouldn't be able to compete with it on Single-Target where
분리된 정령 loses ~75% of its strength.
It does not change our choice in covenant at this time, for any content.
분리된 정령 is the first revealed covenant specific legendary for Restoration Shaman, and its not off to the greatest start.
Getting a chunk of haste after using
태고의 파도 is alright, although not particularly intriguing. When it comes to healing it won't be the strongest option for Necrolord Shamans, especially because it has to compete with strong and consistent options such as
원시 해일의 핵, and it directly competes with
조나트의 자연 집중 with them both working off of
태고의 파도. In M+, a haste buff on demand might be more useful, but not sure yet if its strong enough there either.
The best case scenario (outside of the passive use) would be setting up
분리된 정령 into the
거센 장마 buff, where you'd have the strong
치유의 비,
치유의 해일 토템 and a lot of
성난 해일s out, which all scale with haste - which still does not seem too strong and a bit niche. And while haste is a great stat for damage output, I don't see this legendary being useful for damage output, especially when you can just pick up
심연전율 바위 instead.
All in all I don't think that this will replace any of the current legendaries and it is also not something you're going to swap covenants for.