(It's an artifact with "2, T, Sacrifice this artifact: You gain 3 life.") Whenever you sacrifice a Food, you may pay 1
K'rrik, Son of Yawgmoth The most popular black commander on EDHREC is also the most powerful
While you might not play it much in the main deck, it is a perfect ace in the hole in the sideboard
In Collector Boosters you can open textured foil versions of Breaking News cards
You should definitely play him with Sokkas Haiku, a Lesson whose text is itself a haiku and serves as a powerful albeit expensive counterspell The Magic: The Gathering Avatar: The Last Airbender set offers lots of cute art based on the show, and collectors will also find plenty of special treatments
Copying a triggered ability already happens with things that exist, so there is no reason for this to have the acorn symbol on it