, Pay 1 life, Sacrifice Arid Mesa: Search your library for a Mountain or Plains card and put it onto the battlefield. Then shuffle your library.

, 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.

CLICK TO TRANSFORM

At the beginning of your upkeep, look at the top card of your library. You may reveal that card. If an instant or sorcery card is revealed this way, transform Delver of Secrets.

Flying

Hexproof
Whenever Geist of Saint Traft attacks, put a 4/4 white Angel creature token with flying onto the battlefield tapped and attacking. Exile that token at the end of combat.

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.

Landfall - Whenever a land enters the battlefield under your control, Steppe Lynx gets +2/+2 until end of turn.

Lightning Bolt deals 3 damage to target creature or player.

Lightning Helix deals 3 damage to target creature or player and you gain 3 life.

Counter target spell unless its controller pays .

Exile target creature. Its controller may search his or her library for a basic land card, put that card onto the battlefield tapped, then shuffle his or her library.

Draw a card.
Scry 2

, Pay 1 life, Sacrifice Misty Rainforest: Search your library for a Forest or Island card and put it onto the battlefield. Then shuffle your library.

As Steam Vents enters the battlefield, you may pay 2 life. If you don't, Steam Vents enters the battlefield tapped.

, Pay 1 life, Sacrifice Marsh Flats: Search your library for a Plains or Swamp card and put it onto the battlefield. Then shuffle your library.

Flash
Flying
When Vendilion Clique enters the battlefield, look at target player's hand. You may choose a nonland card from it. If you do, that player reveals the chosen card, puts it on the bottom of his or her library, then draws a card.

Choose one - Counter target noncreature spell unless its controller pays ; or Izzet Charm deals 2 damage to target creature; or draw two cards, then discards two cards.

As Hallowed Fountain enters the battlefield, you may pay 2 life. If you don't, Hallowed Fountain enters the battlefield tapped.

: Add to your mana pool.
, , Exile a creature card from your graveyard : put 1/1 white Spirit creature token with flying onto the battlefield.

: Add to your mana pool.
, : Prevent the next 2 damage that would be dealt to target legendary creature this turn.

As Sacred Foundry enters the battlefield, you may pay 2 life. If you don't, Sacred Foundry enters the battlefield tapped.

If you have less life than an opponent, you gain 6 life. If you control fewer creatures than an opponent, put three 1/1 white Soldier creatures tokens onto the battlefield.

Activated abilities of artifacts can't be activated.

: Change a target of target spell or ability to Spellskite. ( may be paid for with either or 2 life.)

Destroy all artifacts. They can't be regenerated.

: Target player exiles a card from his or her graveyard.
, Exile Relic of Progenitus: Exile all cards from all graveyards. Draw a card.

Destroy target land. If that land was nonbasic, Molten Rain deals 2 damage to the land's controller.

Exile target black or red permanent.

Activated abilities cost more to activate unless they're mana abilities.