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Guess what I encountered? Thunder trash, Thunder mid-boss, and Thunder final boss--all with my Water team on my very first attempt. That's 3/3 elemental disadvantage against an element we haven't even encountered yet. I actually managed to clear it with 1 Elixir. Debuffs falling off is actually what killed me, ironically. They got out of sync due to a bad transition, misses, and general panic. I also had some bad RNG with my Soul taking some focus-fire. I kind of wish I recorded it, as it was the most epic battle I'll probably ever face.