"Necropolis" - changes to creatures of levels 6-7.

RedHeavenHero, which ability should be used against the Death Strike? I don't think making the 7th-level ability weak again will be a 100% solution.

Added 1 minute ago
SRD, I'm a bit busy right now. While we're thinking about the mechanics, I don't see any difficulties for myself.

I'm still curious, is it possible:

I'm more interested in the actual passage - "through" rather than "over" the wall. Guys, what do you think, is it possible? It's a bit annoying that ghosts fly over the wall when they could go through it.

Could we create a parallel move animation during the flight, so it appears as if they are going through, rather than over, the city walls?