Flying
When Abyssal Horror enters the battlefield, target player discards two cards.

Search target opponent's library for an artifact card and put that card onto the battlefield under your control. Then that player shuffles their library.

This spell can't be countered.
Flying, trample, protection from white and from blue
: Akroma, Angel of Fury gets +1/+0 until end of turn.
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

You may exile two green cards from your hand rather than pay this spell's mana cost.
Allosaurus Rider's power and toughness are each equal to 1 plus the number of lands you control.

Exile target artifact or enchantment.

Shroud (This creature can't be the target of spells or abilities.)
Whenever you cast an enchantment spell, draw a card.

Shadow (This creature can block or be blocked by only creatures with shadow.)
Sacrifice Augur il-Vec: You gain 4 life. Activate this ability only during your upkeep.

Whenever Avenging Druid deals damage to an opponent, you may reveal cards from the top of your library until you reveal a land card. If you do, put that card onto the battlefield and put all other cards revealed this way into your graveyard.

Barrenton Cragtreads can't be blocked by red creatures.

Threshold — Put three cards from your graveyard on the bottom of your library: Battlefield Scrounger gets +3/+3 until end of turn. Activate this ability only once each turn and only if seven or more cards are in your graveyard.

Flying
Haunt (When this creature dies, exile it haunting target creature.)
When Belfry Spirit enters the battlefield or the creature it haunts dies, create two 1/1 black Bat creature tokens with flying.

When the names of three or more nonland permanents begin with the same letter, sacrifice Bloodletter. If you do, it deals 2 damage to each creature and each player.

, Sacrifice a creature: Bloodshot Cyclops deals damage equal to the sacrificed creature's power to any target.

Whenever a player casts a black spell, Bog Gnarr gets +2/+2 until end of turn.

As Brass Herald enters the battlefield, choose a creature type.
When Brass Herald enters the battlefield, reveal the top four cards of your library. Put all creature cards of the chosen type revealed this way into your hand and the rest on the bottom of your library in any order.
Creatures of the chosen type get +1/+1.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Whenever Burrenton Shield-Bearers attacks, target creature gets +0/+3 until end of turn.

At the beginning of each player's upkeep, that player sacrifices a non-Zombie creature.
At the beginning of the end step, if no creatures are on the battlefield, sacrifice Call to the Grave.

Vigilance
Cantivore's power and toughness are each equal to the number of enchantment cards in all graveyards.

Flying
When Cavern Harpy enters the battlefield, return a blue or black creature you control to its owner's hand.
Pay 1 life: Return Cavern Harpy to its owner's hand.