For example, let's look at all the milling cards in Magic before I showed up at Wizardsthat is, from Alpha through Homelands
The text was added because the cards are (obviously) a bit confusing without it, and this is the modern template for this clause
Slifer the Sky Dragon Slifer powers up depending on how many cards you have in your hand, so this Deck uses Token-generating effects to help you gather the 3 required Tributes while using fewer cards from your hand
Why is this scenario last
There was no respite outside the main event, either
Led by Mirko, a manipulative vampire, this deck uses the surveil mechanic to control your draws, strategically fill your graveyard, and bring fallen creatures back for calculated revenge