Discard your hand, ante the top card of your library, then draw seven cards
When you play this card, you get to draw two cards, which is a pretty straightforward way to refill your hand
Previously, Atraxa, Grand Unifier outdid this Tyrant, but with the trilands gone Atraxa's four color mana cost will probably be much harder to achieve on curve
Ravensburger did that with the starter deck wraps and the gift set oversized cards, which come in recycled paper
Some of them are inevitably better because of the guaranteed value of one of the cards required to meld, but thats an entire topic in itself
What haven't they drawn much of