Draw a card, then draw cards equal to the number of cards named Accumulated Knowledge in all graveyards.

You may pay 1 life and exile a blue card from your hand rather than pay Force of Will's mana cost.
Counter target spell.

, Pay 1 life, Sacrifice Scalding Tarn: Search your library for an Island or Mountain card and put it onto the battlefield. Then shuffle your library.

Flash
When Snapcaster Mage enters the battlefield, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost.

Counter target noncreature spell unless its controller pays .

Counter target instant or sorcery spell unless its controller pays .
Storm

, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card and put it onto the battlefield. Then shuffle your library.

Counter target spell. At the beginning of your next main phase, add to your mana pool, where X is that spell's converted mana cost.

Search your library for any three cards and reveal them. Target opponent chooses one. Put that card into your hand and the rest into your graveyard. Then shuffle your library.

Return all artifacts target player owns to his or her hand.

: Add to your mana pool.

: Add to your mana pool.

: Add to your mana pool.

: Add to your mana pool.

At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you.
: Add to your mana pool.

: Add to your mana pool.

: Add to your mana pool.

: Add to your mana pool.
: Draw a card. Activate this ability only if you have exactly seven cards in hand.

: Add to your mana pool for each artifact you control.

, Sacrifice Black Lotus: Add three mana of any one color to your mana pool.

Until end of turn, you may play cards from your graveyard.
If a card would be put into your graveyard from anywhere this turn, exile that card instead.

Search your library for four cards with different names and reveal them. Target opponent chooses two of those cards. Put the chosen cards into your graveyard and the rest into your hand. Then shuffle your library.

You may exile a blue card from your hand rather than pay Misdirection's mana cost.
Change the target of target spell with a single target.

Return target nonland permanent to its owner's hand. Then that permanent's controller may sacrifice a land. If the player does, he or she may copy this spell and may choose a new target for that copy.

Return all artifacts to their owners' hands.
Cycling

Target player draws three cards.

Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.

Return target nonland permanent with converted mana cost X to its owner's hand.
Draw a card.

Search your library for a card, then shuffle your library and put that card on top of it. You lose 2 life.

Take an extra turn after this one.

Target player loses 2 life and you gain 2 life.
Storm

Search your library for a card and put that card into your hand. Then shuffle your library.

Search your library for a blue instant card, reveal that card, and put it into your hand. Then shuffle your library.

Draw three cards, then put two cards from your hand on top of your library in any order.

Search your library for an instant or sorcery card and reveal that card. Shuffle your library, then put the card on top of it.

As Pithing Needle enters the battlefield, name a card.
Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.

Put two 1/1 red Goblin creature tokens onto the battlefield.
Storm

Pyroclasm deals 2 damage to each creature.

If an opponent had three or more cards put into his or her graveyard from anywhere this turn, you may pay rather than pay Ravenous Trap's mana cost.
Exile all cards from target player's graveyard.

Destroy two target artifacts.

Choose one - Counter target spell if it's blue; or destroy target permanent if it's blue.

Split second
Choose target card in a graveyard other than a basic land card. Search its owner's graveyard, hand, and library for all cards with the same name as that card and exile them. Then that player shuffles his or her library.

Choose one - Counter target blue spell; or destroy target blue permanent.

When Ingot Chewer enters the battlefield, destroy target artifact.
Evoke