Shroud
Threshold - Nimble Mongoose gets +2/+2 as long as seven or more cards are in your graveyard.

: Add to your mana pool.
, Sacrifice Wasteland: Destroy target nonbasic land.

, 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.

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

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.

You may return an Island you control to its owner's hand rather than pay Daze's mana cost.
Counter target spell unless its controller pays .

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

Lightning Bolt deals 3 damage to target creature or player.

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

Tarmogoyf's power is equal to the number of card types among cards in all graveyards and its toughness is equal to that number plus 1. (Artifact, creature, enchantment, instant, land, planeswalker, sorcery, and tribal are card types.)

Fire deals 2 damage divided as you choose among one or two target creatures and/or players.

Tap target permanent.
Draw a card.

, 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 noncreature spell unless its controller pays .

Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same converted mana cost as the revealed card.

Chain Lightning deals 3 damage to target creature or player. Then that player or that creature's controller may pay . If the player does, he or she may copy this spell and may choose a new target for that copy.

: Look at the top three cards of your library, then put them back in any order.
: Draw a card, then put Sensei's Divining Top on top of its owner's library.

, Sacrifice Tormod's Crypt: Exile all cards from target player's graveyard.

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

Pyroclasm deals 2 damage to each creature.

If an opponent controls a Forest and you control an Island, you may cast Submerge without paying its mana cost.
Put target creature on top of its owner's library.

You may have Phantasmal Image enter the battlefield as a copy of any creature on the battlefield, except it's an Illusion in addition to its other types and it gains "When this creature becomes the target of a spell or ability, sacrifice it."

Flying
Whenever Trygon Predator deals combat damage to a player, you may destroy target artifact or enchantment that player controls.