>>27169150First off, blood is cannon in the manga.
See charmeleon vs. arbok for that. Or Charizard vs. Charizard.
The only instance of "blood" i remember from the anime is during the Riolu 2-part special where he bursts out the back of a truck and the debris cuts his arm. I don't think it shows blood, but it does show a red gash.
The only thing I can think of from the games is that the direct Japanese translation for "Leech Life" is "Suck Blood."
