User blog comment:SaiScott95/SaiScott95's Armorknight Deck (Danger World)/@comment-92.20.70.23-20140122183800/@comment-1755882-20140122232413

Its not JUST that Medusa is redundant. Hysteric Spear also trumps Medusa in every way, and ignores a lot of the weaknesses of Penetrate Monsters. Penetrate Monsters are simply more situational than a Penetrate Weapons, and redundancy in an aspect of a deck that is simply a nice bonus that doesn't really add to a deck's focus is a waste of slots and leads to an inconsistent and unfocused deck.