If played early into a game, a Hedron Crab can mill substantial sums of cards for the minimal investment of one mana
Null Elemental Blast is Ugin the Spirit Dragon's take on the cycle, and it's an immensely powerful tool for specific decks to have access to
| Choosing a Commander | Building Your Deck | Playing the Game | Finding Games | Tips Commander, also known as EDH, is the single most popular Magic: The Gathering format in the world for a reason
If you do, draw X cards, then you may put a permanent card with mana value X or less from your hand onto the battlefield, where X is the sacrificed creature's mana value
Esper Sentinel is a powerhouse both in cEDH and Modern, and it's very likely the best card-draw effect in white
or its Concentrate with an additional cost of exiling a good card from your library