Forum:"Same Name" Card Effects

Cards like Phalanx Pike, and Chthonian Alliance say that a monsters attack is increased for each card with the same name. I saw in the card ruling of Chthnonian Alliance that cards like Harpie Lady still get the +800 effect with cards like Harpy Ladie 2 and Harpie lady 3. What I am asking is do these cards power up cards like "Six Samurai" Archetypes? I know this would work for every archetype with the same name and that might be a little too much, but if I had a "Six Samurai-Yaichi" and a "Six Samurai-Zanji" (just for examples) Would I get the extra 900 [if Yaichi was in my graveyard and I had Zanji face up on the field equipped with Phalanx Pike] or 800 attack[if both were face up on the field for Chthonian Alliance]? Or does it have to be the exact same name? If anyone could reply as soon as possible thanks!