Talk:Grand Quest/@comment-27164538-20160407171041/@comment-28279954-20160423032154

It's very important to read the notes. Particularly this:

Heretic Zoldia
 * Note: Do NOT bring an extremely powerful squad that deals large amounts of damage, or some of the following attacks and thresholds may not match with your battle. EDIT: It looks like he will use different abilities depending on when you reach certain thresholds (70%).
 * Note: ALWAYS try to keep your team at full HP each turn, because he may use multiple AOE attacks in one turn.

For this reason:

At < 70% HP
 * Do not get to 70% before the 5th turn or he will Buff wipe before using his other high damage attacks

When you're going to hit the < 70% threshold, I'd recommend using your mitigator's SBB and defending with the rest of your team. From there on the rest of the battle isn't that hard, but I did have to use the 4 revives I brought with me