NasosIs it possible to include "Titan's Thunder" in an event, Pandora's Box, Seer's Hut, Scholar's Hut, or a scroll? In the standard editor, it's obviously not in the list of spells.
Yes, it's possible in the Unleashed editor.
DandyIs it necessary to use a bug here?
The author stated that he intended it to work without a bug. Have you played Deeply Inundated Dungeon? Remember the troll versus angel fight. It's not obvious, but there's a similar mechanic here. I think this could be a good reference.
DandyIt's the only fight with such a huge number of possible arrangements for your stack(s) and the firewall before the champions' first turn.
I also spent a lot of time on this fight until I realized that I was moving the fake unit to the wrong place in the early rounds, and that's why everything went wrong. But, in my opinion, if you find the right moves in the early rounds (there aren't that many variations), then everything goes normally afterward. And the grid of movement ranges for the champions can be quite misleading.