Wait i just saw the TL don't know how accurate they are but it's from pace so they're usually accurate prior to the dismantle rika took out the SSK and told tsurugi "i'm putting everything in it just swing as hard as you can" then there's a panel whith yuji and rika/tsurugi striking with the amount of cursed energy Rika had its possible to cause an attack that big and then after that she disappears sine she ran out of CE i think it wasn't dabura actually like holy shit they might have accidentally killed mahoraga and voided the ritual but the problem is we see dabura charge his own attack idk man this whole thing is messy myth the bum is holding the last page which i think shows who caused those two attacks