Horus cards are surprisingly and ridiculously hard to remove easily due to their effects triggering whenever a card on the field is removed by card effect
Well, it all really comes down to a technicality on how Necropotence plays out in most of the games in which it resolves
1 Red-Eyes Dark Dragoon A fusion of Dark Magician and Red-Eyes Black Dragon, Red-Eyes Dark Dragoon can also be summoned with Dark Magician and any Dragon type Effect Monster although this results in a slightly less powerful Monster
Does it have to have color
Some lacked valuable pulls or cards with real competitive use, making them easier to overlook
However, in the case of Double Feature, we've been given something that inherently invokes other ideas about what it could, and possibly should, have been released as