Been trying to tackle the new trial since yesterday and would like to share some information.

Dark Golem

• Can be ATK and DEF broken
• Weak against Wind, low SPR, high DEF
• Covers Dark Shiva, cover can be dispelled
• After the turn he cast cover he will use Magnitude 8, needs physical cover
• If you push his threshold during the turn he uses cover (<80%HP), magnitude 8 will not be used. Instead, it will be a series of ST physical attacks. My Wilhelm with 1300 DEF and 18xxx HP needs Lid's ATK breaks to survive (no 100% evade gear).
• Cast AOE Earth MAG attack as well during the turn you cross his treshold
• After pushing the threshold, Golem and Shiva will both be immune to PHY AND MAG Attacks for one turn and increases their DEF and SPR

Dark Shiva

• Can be MAG and SPR broken
• Weak against Fire, high SPR, low DEF
• Cast primarily Ice AOE magical attacks, needs magical cover
• Absorbs Dark Golem after he dies, starts to do ST physical attacks, casts AOE Ice, Earth and Dark magical attacks. WILL NOT HEAL TO MAX HP
• Imperils Ice, Earth and Dark on your party after absorbing Golem
• Cast ST Charm, been hitting on my Fina and Wilhelm only, unsure if random or targetting highest SPR/DEF characters

My strategy (so far)

Mistair setup

• As much Ice, Earth and Dark resistance as you can. This setup lets my Mistair survive all magical AOE from Shiva WITH the elemental buff from Iron Golem trial/CG Fina
• Needs Bar Blizzaga from Carbuncle to survive Ice attacks from Shiva after she absorbs Golem

The rest of the team is the standard:

• PHY Tank- Wilhelm
• Breaker/Elemental Buffer/Charm remover - CG Lid
• Healer/Elemental Buffer - CG Fina
• 2 DPS

I've tried using 2 Ellys with around 2000 MAG, which easily takes care of Golem with the rotation of:

3 x Wind Stack (Brings Golem down to 7x%) > CD skill (While Golem and Shiva are immune due to threshold) > 5 x Wind Stack (Golem down)

Now the fun part begins.

Shiva after absorbing golem is easily manageable with Mistair covering all elemental attacks and Wilhelm tanking the ST attacks. HOWEVER, she gains a very nasty AOE PHY attack after you cross the threshold of 50% (? needs confirmation) that needs to be PHY covered. She does this attack every turn after the threshold.

Problem(s)

So far the only problem I've encountered using the team above is when Shiva does the AOE PHY and AOE MAG together after 60%, as the 2 covers from Wilhelm and Mistair will only proc either one, wiping my team with whichever that isn't covered.

Even with Elly CD skill I still struggled to burn her down from 63% to death using Earth Imperil - Fire Stack - Earth Imperil - Fire Stack - Fire Stack. This brought her down to 30 % or so.

I don't have enough gear to gear up all 5 characters to resist the 3 elements. But I imagine that would simplify the whole trial since you will only need a PHY tank. If anyone can gear up that way and try out the trial, kindly report your findings here so that others may benefit from it.

Currently trying to use 2 Fei's instead and get some stone killers on my Fei with Golem to deal with himself (heh) and Human Killer to deal with Shiva after.

Will report my findings after some trials with the new DPS choice.

EDIT: I managed to clear with all missions with the following setup:

• Mistair - Geared for Elemental Resist
• Wilhelm - Provoke, equipped with Phoenix for mission
• Squall - Fire GS, LB for finishing Shiva, Iron Giant elemental resist buff as well to help Mistair
• Eiko - Heal and Charm removal, equipped with Tetra for mission
• 2 Ellys - Take down Golem in 2 turns and build up chain for Squall LB

Feel free to share your findings here as well and point out any mistakes I made.

Clears

• Felix Santoso posted a video clearing the fight, with an additional DPS in place of a breaker - Video

• u/Okabe666 - Video