(There are short video tutorials at the end of this post if you want to see more details.) For the inside, fold a 5 x 8 piece of Whisper White card stock in half and cut two slits
They created a precedent of having non-Magic cards in boosters with rules relevance, leading to the checklist cards of Innistrad and perhaps even the Timeshifted cards of Time Spiral block
And it's got a really strong but very specific ability
Sorin, Imperious Bloodlord Im putting this lifelink enabler a little higher than most conditionals because Sorin, Imperious Bloodlord has seen plenty of competitive play across multiple formats
This cycle of green creatures all created a copy of themselves on death, except it was black (because its a shadow) and didnt create a copy of itself (presumably, because shadows dont have their own shadows, and also the mechanic would be overpowered)
Knife-Throwing Act: Number 74: Master of Blades appears to use his knife throwing as this, given that his Japanese OCG name, Magical Clown - Missing Sword, implies that he is some sort of entertainer or performer
