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

At the beginning of your upkeep, reveal the top card of your library and put that card into your hand. You lose life equal to its converted mana cost.

, 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.

( can be paid with either or 2 life.)
Counter target spell with converted mana cost 1.

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.

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 .

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

Take an extra turn after this one.

Look at the top three cards of your library, then put them back in any order. You may shuffle your library.
Draw a card.

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

As an additional cost to cast Tinker, sacrifice an artifact.
Search your library for an artifact card and put that card onto the battlefield. Then shuffle your library.

Trample, infect
Blightsteel Colossus is indestructible.
If Blightsteel Colossus would be put into a graveyard from anywhere, reveal Blightsteel Colossus and shuffle it into its owner's library instead.

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

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

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

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

Lightning Bolt deals 3 damage to target creature or player.

: Add to your mana pool.

: Add to your mana pool.

, : Untap target artifact.

Time Vault enters the battlefield tapped.
Time Vault doesn't untap during your untap step.
If you would begin your turn while Time Vault is tapped, you may skip that turn instead. If you do, untap Time Vault.
: Take an extra turn after this one.

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.

Destroy two target artifacts.

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.

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

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

Target player draws three cards.

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

: Add to your mana pool.

, Sacrifice Nihil Spellbomb: Exile all cards from target player's graveyard.
When Nihil Spellbomb is put into a graveyard from the battlefield, you may pay . If you do, draw a card.

Creature cards can't enter the battlefield from graveyards or libraries.
Players can't cast cards in graveyards or libraries.

If Leyline of the Void is in your opening hand, you may begin the game with it on the battlefield.
If a card would be put into an opponent's graveyard from anywhere, exile it instead.

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

: Add to your mana pool.
, Sacrifice Strip Mine: Destroy target land.