The moment it enters, you can divide four damage among creatures or planeswalkers, which often clears mana dorks, token boards, or utility creatures before they ever get value
Part 11: Cardstock Errors The errors in this section refer to events that arent technically related to the printing but things that happen to the cardstock prior, during, or sometimes even after the printing has been completed
More then ever, and especially in the past 9ish months, this has been a very front-of-mind issue
The [c]Circle of Protection[/c] cards are a mega-cycle of white enchantments that each cost two mana, 1 white and 1 generic
Every attack draws cards based on how many equipped creatures you send into battle, and if Clouds power hits 7 or more, you even make two Treasures
On creatures that permanently have the ability, usually there's a pretty sizable mana increasebut don't let that trick you