Ending spoiler..[/SPOILER].Weissmann's death being anticlimactic is part of the point: he never got his glorious moment using the Aureole, and his death is both horrible and perfectly suited for someone as close-minded (and ungrateful to the Grandmaster) as he is now. Furthermore it reveals a side of Kevin seeking atonement for how alike and/or unlike he is to Weissmann, having manipulated Estelle and Joshua in order to serve the Gralsritter. The Aureole probably escaped back into the dimension Celeste D. Auslese and company sealed it within centuries prior, but we might get clarification in 3rd on that + Campanella's role here
No, the Aureole was stored in the staff Campanella took from Weissmann's crumbled body. Weissmann's staff was, like Loewe's sword, forged through Divergent Laws and is apparently capable of storing a Sept-Terrion. Ouroboros is now in possession of the Aureole.
And well, Weissmann got pretty much killed in the most cruel way possible. Both he, Kevin and Campanella know that.
And well, Weissmann got pretty much killed in the most cruel way possible. Both he, Kevin and Campanella know that.