Draw four cards, then choose X cards in your hand and discard the rest.

Each player draws three cards, then discards three cards at random.

Draw two cards, then discard two cards.

Draw two cards, then discard two cards. Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Draw two cards, then discard two cards. Untap up to three lands.

Whenever an opponent discards a card, you may draw a card.

This spell can't be countered. Flying Whenever you draw a card, Niv-Mizzet deals 1 damage to any target. Whenever a player casts an instant or sorcery spell, you draw a card.

As an additional cost to cast this spell, discard a card. Draw two cards.

Discard all the cards in your hand, then draw that many cards.

Each player discards their hand, then draws seven cards.

Counter target spell.

As an additional cost to cast this spell, discard X cards. Firestorm deals X damage to each of X targets.

Buyback—Discard two cards. (You may discard two cards in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.) Counter target spell.

Discard any number of cards. Counter target spell unless its controller pays {3} for each card discarded this way.

If it's not your turn, you may exile a blue card from your hand rather than pay this spell's mana cost. Counter target noncreature spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.