There was not a hint of hesitation in Nero's movements that betrayed his thoughts, but internally he was genuinely surprised. Silas' ability was genuinely a ridiculously useful augmentation ability. He could not help but imagine how many secret compartments he would have found if Silas had been with him in the cathedral, or how many secrets he would have learned down in the Vault.
At the same time, he began to wonder if his experience was different, or if it was normal for innate abilities to not only be so versatile and varied, but also so powerful. His understanding was that humans unlocked relatively normal innate abilities, and that their true strength relied in Eldrim cards.