Any effects that say that the Angel, Demon, or Dragon creature can't attack (such as that of Propaganda or if the creature has defender) affect only the declaration of attackers
Predefined tokens are catching on in Magic, with Roles now joining Food, Treasure, and Clues in the growing well that Wizards has to dip into
Im personally thinking of a Modern Infect storm build that made the rounds a while ago, playing off of tutoring up Venerated Rotpriests to the field as quickly as possible and then hitting them with as many Ground Rifts as possible
We get a whopping nine cards in this Lair, which is inconceivable, as we usually get four or five
Otherwise, put a +1/+1 counter on that creature, then put the card back or put it into your graveyard