Grounded

Enchant creature
Enchanted creature loses flying.

Spirit Away

Enchant creature
You control enchanted creature.
Enchanted creature gets +2/+2 and has flying.

Mistmeadow Witch

: Exile target creature. Return that card to the battlefield under its owner’s control at the beginning of the next end step.

Bloodfire Colossus

, Sacrifice Bloodfire Colossus: It deals 6 damage to each creature and each player.

Bloodfire Kavu

, Sacrifice Bloodfire Kavu: It deals 2 damage to each creature.

Myr Superion

Spend only mana produced by creatures to cast this spell.

Surgical Extraction

( can be paid with either or 2 life.)
Choose target card in a graveyard other than a basic land card. Search its owner’s graveyard, hand, and library for any number of cards with the same name as that card and exile them. Then that player shuffles.

Buried Alive

Search your library for up to three creature cards, put them into your graveyard, then shuffle.

Divine Reckoning

Each player chooses a creature they control. Destroy the rest.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Evil Twin

You may have Evil Twin enter as a copy of any creature on the battlefield, except it has “, : Destroy target creature with the same name as this creature.”

Stormblood Berserker

Bloodthirst 2 (If an opponent was dealt damage this turn, this creature enters with two +1/+1 counters on it.)
Menace (This creature can’t be blocked except by two or more creatures.)

Worldslayer

Whenever equipped creature deals combat damage to a player, destroy all permanents other than Worldslayer.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Blood Seeker

Whenever a creature an opponent controls enters, you may have that player lose 1 life.

Pentavus

Pentavus enters with five +1/+1 counters on it.
, Remove a +1/+1 counter from Pentavus: Create a 1/1 colorless Pentavite artifact creature token with flying.
, Sacrifice a Pentavite: Put a +1/+1 counter on Pentavus.

Diabolic Tutor

Search your library for a card, put that card into your hand, then shuffle.

Serra Angel

Flying
Vigilance (Attacking doesn’t cause this creature to tap.)

Bloodlord of Vaasgoth

Bloodthirst 3 (If an opponent was dealt damage this turn, this creature enters with three +1/+1 counters on it.)
Flying
Whenever you cast a Vampire creature spell, it gains bloodthirst 3.

Vedalken Plotter

When Vedalken Plotter enters, exchange control of target land you control and target land an opponent controls.

Diabolic Tutor

Search your library for a card, put that card into your hand, then shuffle.