When he transforms, you get a permanent emblem with his life-draining ability
Fortunately, players start with 40 life and black provides access to spells like [card]Exsanguinate[/card] that refill your life total, so paying one per card usually isnt too painful
So, in order to maximize that, you'd drop lands and cards from your library first, and then your hand second
As much as Id love to tell people to draft to fill up their collections, its come to my attention that there are, in fact, people who like to play Constructed instead
They are functionally identical to black-bordered cards and differ only in appearance, not legality or gameplay
I love the story of this card because he's so fearsome in the art, but what he does in the game is [run away]...This is a great example of combining the character [lore] with a fun card, Ryan Miller Kim adds that Rexs card also features Woody and Buzz glimmers in the background, protected by their fearsome Bodyguard