She also wondered briefly where Luna was, but concluded that the Princess was likely below decks with the Night Guard. Rainbow had seen Luna earlier, wearing the same armour that she'd worn when she came to Ponyville after her friends had been kidnapped. Given the time to reflect on it, Luna, Rainbow concluded, was not a pony to mess with, and that was without seeing the two glaives Luna used to fight. Perhaps with Luna leading the attack, things might not go as bad as Rainbow was afraid they might.