Dark Spell Factory Level 8 in nulls clash

Garad

Alongside the new troop, the nulls clash sneak peeks also revealed a Dark Spell Factory Level 8 upgrade at Town Hall 15. We haven't had a new Dark Spell in ages, so this is huge news for the upcoming June update. I'm really hoping for something that counters the crazy defense damage at TH18, like a temporary shield or a spell that disables traps. What are your best theories for the new Dark Spell?