The first one to make a move was none other than Aurora, since she will be fighting two high stage Stellar enemies, the collateral damage might be too much, so the first thing she did was of course… summon her domain.
"Radiant Fortress", though Aurora could manipulate space and also had mana sense, her capacity to manipulate space was poorly developed, to the point that she couldn't transport anyone that has surpassed the Half Stellar realm, unlike Vincent or Thea.
But in exchange, unlike them she did develop a domain, that being said, the members of the royal lineage of the Light Palace, weren't meant for combat, their strength lied in a wide range of light support spells.
That doesn't mean they can't use offensive oriented light spells, but their light element isn't a destructive one like Daimon's, but the healing type, meaning that their offensive will always be lower when compared to battle oriented enemies.