Mark Hyzer

Kederekt Leviathan

When Kederekt Leviathan comes into play, return all other nonland permanents to their owners' hands.
Unearth {6U} ({6U}: Return this card from your graveyard to play. It gains haste. Remove it from the game at end of turn or if it would leave play. Unearth only as a sorcery.)

When this creature enters, return all other nonland permanents to their owners' hands.
Unearth {6}{U} ({6}{U}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Bloodhill Bastion

Whenever a creature enters the battlefield, it gains double strike and haste until end of turn.
Whenever you roll chaos, exile target nontoken creature you control, then return it to the battlefield under your control.

Whenever a creature enters, it gains double strike and haste until end of turn.
Whenever chaos ensues, exile target nontoken creature you control, then return it to the battlefield under your control.

Corpse Connoisseur

When this creature enters, you may search your library for a creature card, put that card into your graveyard, then shuffle.
Unearth {3}{B} ({3}{B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

The mighty city of An Karras, with its rich history, built over thousands of years, fell in three hours.

Juggernaut

This creature attacks each combat if able.
This creature can't be blocked by Walls.

Anathemancer

When this creature enters, it deals damage to target player equal to the number of nonbasic lands that player controls.
Unearth {5}{B}{R} ({5}{B}{R}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Using a spine to break a slave's back appeals to the Grixis sense of irony.

Demonspine Whip

{X}: Equipped creature gets +X/+0 until end of turn.
Equip {1}

An Esper mage will leave a hole in your memory with surgical precision. A Grixis mage sees no reason to be so kind.

Brainbite

Target opponent reveals their hand. You choose a card from it. That player discards that card.
Draw a card.

Dreadwings spring from lofty perches to surprise kathari in midflight. They smother their prey and then consume it as they glide gently toward the ground.

Dreadwing

{1}{U}{R}: This creature gets +3/+0 and gains flying until end of turn.

The bones of Jund's dead resurfaced in Naya, poisoning the jungle and killing the sunseeders' crops.

Corrupted Roots

Enchant Forest or Plains
Whenever enchanted land becomes tapped, its controller loses 2 life.

Murderous Redcap

When this creature enters, it deals damage equal to its power to any target.
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

Dark Ritual

Bloated with venom, it crawls Grixis looking for victims to ooze onto.

Kederekt Creeper

Menace (This creature can't be blocked except by two or more creatures.)
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)