Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
When Abbot of Keral Keep enters the battlefield, exile the top card of your library. Until end of turn, you may play that card.

Flying
When Abhorrent Overlord enters the battlefield, create a number of 1/1 black Harpy creature tokens with flying equal to your devotion to black. (Each in the mana costs of permanents you control counts toward your devotion to black.)
At the beginning of your upkeep, sacrifice a creature.

Choose one —
• Abrade deals 3 damage to target creature.
• Destroy target artifact.

This spell can't be countered.
Destroy target nonland permanent with converted mana cost 3 or less.

When Abu Ja'far dies, destroy all creatures blocking or blocked by it. They can't be regenerated.

At the beginning of your upkeep, draw a card if you control the creature with the greatest toughness or tied for the greatest toughness.

Draw a card, then draw cards equal to the number of cards named Accumulated Knowledge in all graveyards.

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
When Acidic Slime enters the battlefield, destroy target artifact, enchantment, or land.

Double strike
Eternalize (, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie Cat with no mana cost. Eternalize only as a sorcery.)

When Aether Hub enters the battlefield, you get (an energy counter).
: Add .
, Pay : Add one mana of any color.

Creature spells can't be cast.
Pay 4 life: Destroy Aether Storm. It can't be regenerated. Any player may activate this ability.

First strike
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Whenever Aisling Leprechaun blocks or becomes blocked by a creature, that creature becomes green. (This effect lasts indefinitely.)

[+1]: You gain 2 life.
[−1]: Put a +1/+1 counter on each creature you control. Those creatures gain vigilance until end of turn.
[−6]: Create a white Avatar creature token. It has "This creature's power and toughness are each equal to your life total."

[+1]: Target permanent doesn't untap during its controller's next untap step.
[−2]: Ajani Vengeant deals 3 damage to any target and you gain 3 life.
[−7]: Destroy all lands target player controls.

Creatures you control have vigilance.
[+1]: You gain 3 life.
[−2]: Put a +1/+1 counter on each creature you control and a loyalty counter on each other planeswalker you control.

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
: Regenerate Albino Troll.

Flying
As Alhammarret, High Arbiter enters the battlefield, each opponent reveals their hand. You choose the name of a nonland card revealed this way.
Your opponents can't cast spells with the chosen name (as long as this creature is on the battlefield).

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.

Whenever another permanent enters the battlefield under your control, each opponent mills a card.