Uninvited guests.

Regarding the effect of hero abilities on the wall – it’s likely not feasible in the current version.

Yeah, but it’s fine, it’s already overpowered, and with level 28, it also hits with thorns. Half the battles pass without a single hit. It’s like a super-powered Faidaen.

Added 6 minutes ago

I tried to anticipate this. It’s a shame that it’s still a bug. I’ll think about what to do with it.

For example, you could make it so that the upper creature is hit, starting from the upper coordinate, and the lower creature – from the lower coordinate, if the cast is based on coordinates, not on creatures. If it’s based on them, I suppose it will always be centered on the lower right coordinate. Or, for example, you could block the arena type; I don’t know, though, what of this is feasible.

Added 23 minutes ago

For example, you could make it so that the upper creature is hit, starting from the upper coordinate, and the lower creature – from the lower coordinate, if the cast is based on coordinates, not on creatures.

Hmm, I just fought against three squads of small creatures, and that’s exactly what happened. They were standing on 2, 5, and 9. The wall hit 234 and 789.

Added 38 minutes ago
Bug report number, I don’t remember which. I just fought on the eye-shaped arena again, this time against small creatures. It worked with 3 squads, but not with 2. They were standing on 3 and 8; the wall hit 345 and, apparently, was going to hit 8910, but it failed because of the eye.

By the way, I completed the scenario. It was fun, especially finding bugs and coming up with ways to solve them, although that was my own initiative. Maybe I should become a tester? Wahahaha.