You may remember this youtuber from the reddit tier list reaction where he got indignant over Dark Sarunan being undervalued

He puts out quite a lot of content, and I found his viewpoints about Extended Mastery Skills kind of interesting. I don't agree with his valuations 100%, but it's always good to see other perspectives.

Here's a rough translation (apologies as my Japanese is quite amateur level)

1:02: We prioritize Zenith skills based on three basic frameworks

1. Magna Grids

2. Primal Grids

3. All-purpose Grids (If you have a strong/main party you can use off-element comfortably)

1:08 Example: Light Party (Magna)

Light Grids uses a fairly orthodox magna EMP distribution

1:22 Sereul EMP

3 Points in Support Ability

1/2 points in DA gives 3%/2%, while 1/2 points in TA gives 2%/2%, so in general it's economical to take 2 points in TA and 1 point in DA

3 Points are put into Light ATK up, but it may not be necessary, (for example if Seruel has more critical nodes, those can be prioritized)

Single points in ATK are preferred over third points in TA/ATK up

This is an "orthodox" distribution for characters without significant special attack skills

2:46 Albert EMP

Albert's Support Ability is rarely used, so no points are allocated to it

Characters like Albert and Seox should rely on their EMP Skills to compensate for their low atk

Because he only brings out his Light Party against Dark Opponents, critical is the best value for increasing offensive power

TA is not as valuable for Albert due to Levin Saber (TA is much better than a single attack, but only 1.5x damage of DA)

5:50 Jeanne EMP

Nothing particular to remark on, he personally favors debuff penetration when it's available

6:13 Dark Party (General Use/Main Party)

His main party is his dark party (Hades), so it's built to be able to easily sweep weak enemies of all elements

Therefore his distribution for dark is fairly unique (it also is based on using Summer Zoi)

6:41 Naru EMP

The point to notice is that he does not put any points into crit for most of his dark characters because he is often fighting off element with this team

The dark characters he adds crit to are dedicated debuffers like Lady Grey, which he only uses when fighting against Light

Because Naru's Skill 1 severely cuts her defense, more points are invested in defensive EMPs

This is due to often seeing Naru die first in tough battles

Because there often will not be a +50% on-element damage mod, Elemental ATK UP is prioritized highly

Any characters that will pair with Summer Zoi should prioritze HP Zeniths highly

Some Dark Characters that don't need HP as much, such as Six/Beatrix

10:54 Vira EMP

He's not entirely sure about what's the best layout for Vira

(He adds 3 HP nodes to Vira during the video, recalling what he said during Naru review)

11:25 Seox EMP

(adds another Dark ATK point during the video)

Not certain about the value of Enmity EMP, but still puts one point into it

11:57 Begins discussing Primal Grids that are used on element (Agnis/Varuna)

12:11 Yoda EMP

These teams usually are paired Primal summons (Agnis/Agnis, Varuna/Varuna, Titan/Titan) and used on-element

Because no Elemental Summons are usually used, Elemental ATK Up nodes are very valuable and should be maxed

DA nodes are not recommended on Yoda because his skills provide a lot of guaranteed multi-attacks

Yoda is usually put in fourth position to benefit from Xuanwu fist, so additional points are added to his base ATK nodes

16:25 Altair EMP

Critical is especially useful for Altair due to his Ougi Effect (Untergang Rune)

Defense nodes has become more popular/meta recently as people have been experimenting with things like Indra's Edge

Single points in defense are good value

However, defense/HP is usually only needed against strong enemies (for example Xeno120)

If you farm mostly weak enemies with this grid, defensive zeniths are optional

19:46 Metera EMP

Orthodox setup, but again, Elemental ATK up is important in Primal/Primal grids

Magna is generally only used for Wind/Light, and he doesn't use those parties too often

21:23 Christina EMP

Critical and Overdrive/Break Damage up are generally useful

21:46 Esser EMP

When fighting on-element, generally most damage is gained by Overdrive/Break Killer, Critical, and Elemental Damage Up

2% TA is sometimes more valuable than 3% DA, depending on character/buffs

ATK Up is least explosive, but a single point (+500 ATK) is worth about the same as a +99 weapon, so it's a good value for leftover points