When Academy Researchers enters, you may put an Aura card from your hand onto the battlefield attached to Academy Researchers.

Flying

Flying

When Angel of Mercy enters, you gain 3 life.

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)

Enchanted creature gets +2/+2 and has ": This creature deals 1 damage to any target."

Artifact and enchantment spells your opponents cast cost more to cast.

Sacrifice Aura of Silence: Destroy target artifact or enchantment.

Enchant creature

Enchanted creature gets +1/+1 for each Forest you control.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

, , Sacrifice Chromatic Star: Add one mana of any color.

When Chromatic Star is put into a graveyard from the battlefield, draw a card.

Sacrifice Composite Golem: Add .

Cone of Flame deals 1 damage to any target, 2 damage to another target, and 3 damage to a third target.

Destroy target artifact, enchantment, or land.

Destroy target Plains or Island. Cryoclasm deals 3 damage to that land's controller.

Tap all creatures without flying.

Whenever a player casts a black spell, you may gain 1 life.

Counter target spell. Look at the top four cards of your library, then put them back in any order.

: Regenerate Drudge Skeletons. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Elven Riders can't be blocked except by Walls and/or creatures with flying.

Faerie Conclave enters tapped.

: Add .

: Faerie Conclave becomes a 2/1 blue Faerie creature with flying until end of turn. It's still a land.

: Flamewave Invoker deals 5 damage to target player or planeswalker.

Flying (This creature can't be blocked except by creatures with flying or reach.)

When Fog Elemental attacks or blocks, sacrifice it at end of combat.

, : You gain 1 life.

Ghitu Encampment enters tapped.

: Add .

: Ghitu Encampment becomes a 2/1 red Warrior creature with first strike until end of turn. It's still a land. (It deals combat damage before creatures without first strike.)

When Gravedigger enters, you may return target creature card from your graveyard to your hand.

Hail of Arrows deals X damage divided as you choose among any number of target attacking creatures.

When Hidden Horror enters, sacrifice it unless you discard a creature card.

When Hunted Wumpus enters, each other player may put a creature card from their hand onto the battlefield.

Flying

Whenever Hypnotic Specter deals damage to an opponent, that player discards a card at random.

, : Tap target artifact, creature, or land.

This creature attacks each combat if able.

This creature can't be blocked by Walls.

: Destroy target creature blocking Knight of Dusk.

Equipped creature gets +1/+1.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

Prevent all damage that black sources and red sources would deal this turn.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Whenever an opponent discards a card, Megrim deals 2 damage to that player.

: Target red or white creature gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Change the text of target permanent by replacing all instances of one color word with another or one basic land type with another. (For example, you may change "nonblack creature" to "nongreen creature" or "forestwalk" to "islandwalk." This effect lasts indefinitely.)

Sacrifice Mogg Fanatic: It deals 1 damage to any target.

Sacrifice a creature: Nantuko Husk gets +2/+2 until end of turn.

First strike

When Nekrataal enters, destroy target nonartifact, nonblack creature. That creature can't be regenerated.

: Orcish Artillery deals 2 damage to any target and 3 damage to you.

Creatures you control get +3/+3 and gain trample until end of turn. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.)

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)

You control enchanted creature.

, , Sacrifice a creature: Draw a card.

: Prodigal Pyromancer deals 1 damage to any target.

Pyroclasm deals 2 damage to each creature.

Whenever you cast a spell that's white, blue, black, or red, put a +1/+1 counter on Quirion Dryad.

Destroy target land.

Return target card from your graveyard to your hand.

Relentless Rats gets +1/+1 for each other creature on the battlefield named Relentless Rats.

A deck can have any number of cards named Relentless Rats.

Target blocking creature gets +7/+7 until end of turn.