What does Alex know about Vampire? Naturally, when he inherited the knowledge of the previous owners, Alex learned various things about different races.
Their strengths and weaknesses. What they like and what they do not. What makes them stronger, and what unnaturally weakens them? Like the wolf-kin or other similar beast kinds become stronger when they are out for revenge. Emotional instability provides them a boost which can easily overwhelm their foe.
From what Alex knows, the Vampires have only two glaring weaknesses that he could exploit: first is the sun, which makes their blood warmer and Soul Energy a bit unstable. And the second was the lack of blood around.
Vampires can reenergize themselves mid-battle by the blood of any being. However, considering the pride of this specific Vampire, Alex doubted if he would resort to external help.
Considering these two conditions, Alex hoped he could somehow win this battle.
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