I'm pretty sure that the stat downs apply before the damage, and that's why Orpha's Ignition does such massive damage; also Kyouko's and Uruka's attacks that lower defense/resist do the same damage on each attack rather than lower damage on just the first attack
persocom01 wrote:However, even then I doubt she can take a hit from heaven's sword + silent field.
My first playthrough of Super Hard (3rd playthrough overall, so no excess leveling), I wasn't able to get to Mieyu fast enough in mission 16 after triggering the new squads to spawn, and wound up having to fight 3 squads in the city instead of 2 with my squad of Yuuto, Nim, and Nelie. By the end of it, Yuuto was completely out of attacks and aura photon nova, Nim was out of Lightning Strike IIIs and Elemental Blast, and Nelie was out of Leap Attacks and Impulse Blows. And the next squad was moving into Mieyu that turn without me getting a chance to heal up, putting me in danger of auto-losing a battle to stalemate if I ran out of attacks. The enemy squad had a HS IV attacker and a Silent Field II supporter, so instead of banishing the SFII I decided to pray that Nim could survive, and set Nelie as attacker, Nim defender, and Yuuto supporter (with Passion II, intending to try Holy next if it didn't work out). On top of the SFII, Mieyu already has a large blue bonus, but it also has 15% defense.
Nelie proceeded to obliterate the enemy squad with HS V for 75k damage to each spirit, and Nim barely survived the enemy HS IV even with the Passion debuffs. Nelie did such massive overkill that I could have easily used Holy instead if Nim had died, but I didn't have to reload as it was.
On my first playthrough though I usually relied on Halion for handling HS and eating unbanished nukes, due to her massive HP and highest resist of the green spirits pre-KK. At the very end of normal IIRC the enemies start moving up to Leap Attack III which makes them easier than the HS II you constantly had to deal with slightly before the end, and anyone can handle it. And yeah I kept Accurate Block VIII on Esperia forever, although I ended up mainly relying on Gaia Bless (two casts for +1 each) and towns/crystals for mind recovery