Command the Dreadhorde

Choose any number of target creature and/or planeswalker cards in graveyards. Command the Dreadhorde deals damage to you equal to the total converted mana cost of those cards. Put them onto the battlefield under your control.

Progenitor Mimic

You may have Progenitor Mimic enter the battlefield as a copy of any creature on the battlefield, except it has “At the beginning of your upkeep, if this creature isn’t a token, create a token that’s a copy of this creature.”

Rakdos’s Return

Rakdos’s Return deals X damage to target opponent or planeswalker. That player or that planeswalker’s controller discards X cards.

One Thousand Lashes

Enchant creature
Enchanted creature can’t attack or block, and its activated abilities can’t be activated.
At the beginning of the upkeep of enchanted creature’s controller, that player loses 1 life.

Benthic Biomancer

: Adapt 1. (If this creature has no +1/+1 counters on it, put a +1/+1 counter on it.)
Whenever one or more +1/+1 counters are put on Benthic Biomancer, draw a card, then discard a card.

Theater of Horrors

At the beginning of your upkeep, exile the top card of your library.
During your turn, if an opponent lost life this turn, you may play lands and cast spells from among cards exiled with Theater of Horrors.
: Theater of Horrors deals 1 damage to target opponent or planeswalker.

Benthic Biomancer

: Adapt 1. (If this creature has no +1/+1 counters on it, put a +1/+1 counter on it.)
Whenever one or more +1/+1 counters are put on Benthic Biomancer, draw a card, then discard a card.

Windstorm Drake

Flying
Other creatures you control with flying get +1/+0.

Benthic Biomancer

: Adapt 1. (If this creature has no +1/+1 counters on it, put a +1/+1 counter on it.)
Whenever one or more +1/+1 counters are put on Benthic Biomancer, draw a card, then discard a card.

Theater of Horrors

At the beginning of your upkeep, exile the top card of your library.
During your turn, if an opponent lost life this turn, you may play lands and cast spells from among cards exiled with Theater of Horrors.
: Theater of Horrors deals 1 damage to target opponent or planeswalker.

High Alert

Each creature you control assigns combat damage equal to its toughness rather than its power.
Creatures you control can attack as though they didn’t have defender.
: Untap target creature.

Bridge from Below

Whenever a nontoken creature is put into your graveyard from the battlefield, if Bridge from Below is in your graveyard, create a 2/2 black Zombie creature token.
When a creature is put into an opponent’s graveyard from the battlefield, if Bridge from Below is in your graveyard, exile Bridge from Below.

Penumbra Wurm

Trample
When Penumbra Wurm dies, create a 6/6 black Wurm creature token with trample.

Brudiclad, Telchor Engineer

Creature tokens you control have haste.
At the beginning of combat on your turn, create a 2/1 blue Myr artifact creature token. Then you may choose a token you control. If you do, each other token you control becomes a copy of that token.

Brainstorm

Draw three cards, then put two cards from your hand on top of your library in any order.

Immortal Phoenix

Flying (This creature can’t be blocked except by creatures with flying or reach.)
When Immortal Phoenix dies, return it to its owner’s hand.

Immortal Phoenix

Flying (This creature can’t be blocked except by creatures with flying or reach.)
When Immortal Phoenix dies, return it to its owner’s hand.

Niv-Mizzet, the Firemind

Flying
Whenever you draw a card, Niv-Mizzet, the Firemind deals 1 damage to any target.
: Draw a card.

Dream Eater

Flash
Flying
When Dream Eater enters the battlefield, surveil 4. When you do, you may return target nonland permanent an opponent controls to its owner’s hand. (To surveil 4, look at the top four cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Ledev Champion

Whenever Ledev Champion attacks, you may tap any number of untapped creatures you control. Ledev Champion gets +1/+1 until end of turn for each creature tapped this way.
: Create a 1/1 white Soldier creature token with lifelink.

Soul of New Phyrexia

Trample
: Permanents you control gain indestructible until end of turn.
, Exile Soul of New Phyrexia from your graveyard: Permanents you control gain indestructible until end of turn.