Random Card of the Day #122:
Perish - 2G
Destroy all green creatures. They can't be regenerated.
At first I looked at this card and I was like "Meh, situational hoser." Then I looked at the cost and I was astounded. I'm not even sure how they could print something so powerful, even if it's situational. Yet another card waiting to be abused with Sleight of Mind. Well, to avoid the net card loss I might use Crystal Spray instead. Yes, it makes adding blue into the deck necessary, but U/B isn't that uncommon.
That's about it. There's not a lot to say about this card, it's extremely cheap, an amazing sideboard. Color changing cards make this card almost maindeck worthy. I say almost because it's really only legal in eternal formats, where aggro is a contender (as of late and the new Delver of Secrets // Insectile Aberration.) But it's still filled with combo decks and lockdown decks which don't exactly use creatures. And if they do use creatures, they are either Emrakul, the Aeons Torn or Blightsteel Colossus. 4/5