As they cast it, that creature stops being prepared
its not just a fad, a craze, or trend, said IGNs Craig Harris
While this does require Arceus on the field to use, you can slip in the non-ex Arceus into a Darkrai ex deck to add even more non-attack damage each turn
Since there are always a lot of noncreature spells being cast, especially in Standard, having access to a counterspell on a body is fantastic, as it can act as both an attacker and blocker
Which is to say, how many roles in this deck can be covered by a 6-power creature
Draw a card." Bill looked at me and said, "Can the creative make this work?" to which I said, "Sure, I guess." I spent several days thinking about this puzzle until one day it hit me