In addition to your biggest damage sources from the 2p, you also get a flat 10% increase to
화염 작렬,
불사조의 불길, and
화염구 which means that you basically just have 10% more damage. In addition to this,
화염구 also crits 10% more, which is nice. This is like a permanent stack of
불꽃의 마술사. The crit chance for
화염 작렬 and
불사조의 불길 is not really relevant here.
Frost Mage Tier Bonuses
These set bonuses will generally not have any impact on a Frost Mage's rotation because
얼음창 casts against frozen targets and
얼어붙은 구슬 are already high priority spells in the rotation. The only talent build that may see rotational changes is one that specifically tries to avoids ever casting
얼음창 by relying on talents like
깊은 갈라짐,
겨울해일,
미끄러운 얼음, and
한랭 전선 to massively increase the strength of
얼음 화살 casts; however, being encouraged to actually spend
서리의 손가락 with this build thanks to the 4-piece bonus is actually a positive rotational change. A minor concern for all builds is that the 4-piece bonus could encourage waiting to spend
서리의 손가락 (increasing the chance of overlapping it with
혹한의 추위) to improve uptime of
얼음의 손길, but with its current tuning I do not expect that to be an issue.
Early simulations show that the 2-piece bonus can be expected to increase damage by between 2% and 4% and the 4-piece bonus can be expected to increase damage by between 4% and 6%. The specific numbers are slightly affected by the number of targets, but are mainly a function of how well selected talents synergize with the set bonuses. Talent builds utilizing
얼어붙는 바람 will typically reach the higher end of those ranges (around 10% damage in total), while those that select
혹한의 쐐기 will be on the lower end (around 6% damage in total).
Overall, this set bonus already seems to be in a good place in terms of tuning and is mostly meeting Blizzard's stated goal of not significantly altering talent choices or rotational decisions. Unfortunately, there is one area where the bonuses fail to achieve this goal, which is due the lack of synergy with
혹한의 쐐기: casting
혹한의 쐐기 means spending time that does not interact with either bonus at all. If
혹한의 쐐기 were a strong talent this would be less of an issue, but it is already looking to be a generally weak capstone and this set bonus causes it to fall even further behind other choices. The simplest way to resolve this would be adding an additional effect that has synergy with
혹한의 쐐기.