Aether Storm

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

Serpent Generator

, : Create a 1/1 colorless Snake artifact creature token. It has “Whenever this creature deals damage to a player, that player gets a poison counter.” (A player with ten or more poison counters loses the game.)

Ashnod’s Transmogrant

, Sacrifice Ashnod’s Transmogrant: Put a +1/+1 counter on target nonartifact creature. That creature becomes an artifact in addition to its other types.

Lord of the Pit

Flying, trample
At the beginning of your upkeep, sacrifice a creature other than Lord of the Pit. If you can’t, Lord of the Pit deals 7 damage to you.

Leviathan

Trample
Leviathan enters the battlefield tapped and doesn’t untap during your untap step.
At the beginning of your upkeep, you may sacrifice two Islands. If you do, untap Leviathan.
Leviathan can’t attack unless you sacrifice two Islands. (This cost is paid as attackers are declared.)

Fireball

This spell costs more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Circle of Protection: Red

: The next time a red source of your choice would deal damage to you this turn, prevent that damage.

Fireball

This spell costs more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Circle of Protection: Red

: The next time a red source of your choice would deal damage to you this turn, prevent that damage.

Phyrexian Boon

Enchant creature
Enchanted creature gets +2/+1 as long as it’s black. Otherwise, it gets -1/-2.

Phyrexian Boon

Enchant creature
Enchanted creature gets +2/+1 as long as it’s black. Otherwise, it gets -1/-2.

Phyrexian Devourer

When Phyrexian Devourer’s power is 7 or greater, sacrifice it.
Exile the top card of your library: Put X +1/+1 counters on Phyrexian Devourer, where X is the exiled card’s converted mana cost.

Death Spark

Death Spark deals 1 damage to any target.
At the beginning of your upkeep, if Death Spark is in your graveyard with a creature card directly above it, you may pay . If you do, return Death Spark to your hand.

Thought Lash

Cumulative upkeep—Exile the top card of your library. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
When a player doesn’t pay Thought Lash’s cumulative upkeep, that player exiles all cards from their library.
Exile the top card of your library: Prevent the next 1 damage that would be dealt to you this turn.

Phantasmal Sphere

Flying
At the beginning of your upkeep, put a +1/+1 counter on Phantasmal Sphere, then sacrifice Phantasmal Sphere unless you pay for each +1/+1 counter on it.
When Phantasmal Sphere leaves the battlefield, target opponent creates an X/X blue Orb creature token with flying, where X is the number of +1/+1 counters on Phantasmal Sphere.

Nevinyrral’s Disk

Nevinyrral’s Disk enters the battlefield tapped.
, : Destroy all artifacts, creatures, and enchantments.

Feldon’s Cane

, Exile Feldon’s Cane: Shuffle your graveyard into your library.

Winter Orb

As long as Winter Orb is untapped, players can’t untap more than one land during their untap steps.

City of Brass

Whenever City of Brass becomes tapped, it deals 1 damage to you.
: Add one mana of any color.

Circle of Protection: Red

: The next time a red source of your choice would deal damage to you this turn, prevent that damage.

Feldon’s Cane

, Exile Feldon’s Cane: Shuffle your graveyard into your library.

Fireball

This spell costs more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.