User blog comment:Cfp3157/Percy Jackson vs. Harry Potter/@comment-5795750-20131029040329/@comment-4484220-20131105005811

Replied six days lat because I only just noticed:

using Riptide, [Percy] can't seriously harm Harry directly because Harry, while being more than just a human, is not a god, titan, demigod, monster or half-blood (I wonder if Percy then can fare well against Severus Snape since he is the half-blood prince?) in any sense of the word.

I've inferred from a lot of your comments on this wiki that you aren't too familiar with Harry Potter, so let me explain a concept from that universe that appears to have confused you.

A person in the wizarding world who is born entirely of magical blood is called a pure-blood. They are magical, but they are still entirely mortal. If a pure-blood marries a non-magical person (or a magical person born from non-magical parents), then their child would be considered a half-blood. This does not mean they're demi-gods at all; rather, it means they are half purely born of magical blood. This term "half-blood" is used quite often in the Harry Potter universe, but at no point is it referring to any immortal demi-gods. In fact, a majority of all the wizards in the Harry Potter universe are half-bloods, including Harry Potter himself. In other words, Severus Snape is mortal just like Harry, and is equally immune to Riptide.

Half-blood (Harry Potter) != Half-blood (Percy Jackson and the Olympians)

Mixing terms like that between different frahcnises is always a dangerous thing to do.