Talk:Estria/@comment-27628307-20160313085638

Barion can be very hard to beat if you don't have the right units. Like with Mordlim, Iris is the real MVP here, although she's used as a sub rather than your leader. I used Lune as my leader so I can dish out massive Elemental damage against Barion. This was my set-up when I fought him:

Leader: Lune (Heavenly Bud, Providence Ring)

Friend: Karl (Fixed)

Subs:

Medina (if you used Laberd as your mitigator, replace with Haile)

Any mitigator other than Elimo (I used Krantz)

Iris

Charla

The reason why you can't use Elimo for your Mitigator is because Charla is already in your team to provide buffs that will help everyone deal massive damage, and since you need to deal as much damage as you can, Elimo isn't a good idea since like Charla, she can't attack, thus severly limiting your damage potential. I used Krantz, but Mitigator can be used (Laberd, Shera, Dolk and Lafiel are much better options than Krantz, but sadly, I have none of them) for this Trial. If you have Laberd and Haile (who I also don't have), replace Medina with her (Laberd has a much better BB on Hit buff than Medina, and Haile can also provide a higher instant BB fill than Medina can).

For the first turn against Barion, use Charla's SBB first. Wait for her to finish so that her buffs are surely placed on your team, then use Iris' UBB and then Lune's SBB. After that, use any of the other units' SBB in any order you want. When Iris' Fire/Earth shield wears off (at Turn 3), use a Hero Crystal then use Iris' UBB again (after you use Charla's SBB) then Lune's SBB. Iris' UBB is also somewhat similar to Lune's UBB, as it massively boosts damage against weaker elements (in Barion's case, Water to Fire) other than its main purpose in this quest of completely mitigating Fire and Earth attacks. It also stacks with Lune's elemental damage boosts on her LS and SBB and alongside Charla's SBB buffs, you can easily deal massive damage against Barion. Medina is only there for BB management (again, Laberd and Haile can do a much better job), and Krantz is only there as a Mitigator. His other buffs aren't that useful here since Barion doesn't seem to inflict any kind of status ailment (but he deals a shitload of damage, thus Iris).

I killed Barion in 3 turns using this strategy. Hope this helps.