The SinglePlayer Decks in Into the Inklands are preconstructed 60card decks, ready to play out of the box
About five years ago, those types of cards were much better since cubes were slower, but with many cubes adopting aggressive strategies and getting more efficient removal options, things like the Vindicate test (where you get an effect out of it if the creature dies at sorcery speed, so Consecrated Sphinx passes that test) hamper its effectiveness, but it does protect itself well if you are able to untap with it since you can turn just about any blue card into a counterspell or draw card
As such most cubes do well to support those Edicts a bit which in turn helps pure Edict cards perform well
Samurais Katana: Ignore the expensive Equip cost
When challenged, when challenging, and in a challenge are three different bits of rules text that all apply to different situations
As a trade-off for not costing additional mana, Welcoming Vampire 's triggered ability only allows you to draw one card per turn
