Ninjutsu
When Nezumi Prowler enters, put a deathtouch counter and a lifelink counter on target creature you control.

Flying
If damage would be dealt to you, prevent that damage and mill twice that many cards.

This creature gets +2/+0 as long as you control an Angrath planeswalker.

Enchant creature card in a graveyard
When this Aura enters, if it's on the battlefield, it loses "enchant creature card in a graveyard" and gains "enchant creature put onto the battlefield with this Aura." Return enchanted creature card to the battlefield under your control and attach this Aura to it. When this Aura leaves the battlefield, that creature's controller sacrifices it.
Enchanted creature gets -1/-0.

Enchant your graveyard
Enchanted graveyard is a creature on the battlefield with base power and toughness each equal to the number of cards in it. It has the text boxes of all creature cards in it. It's still a graveyard.
If enchanted graveyard would leave the battlefield, instead exile Animate Graveyard.

Menace
Whenever this creature attacks, it gets +X/+0 until end of turn, where X is the number of creature cards in defending player's graveyard.

Destroy target nonblack creature. It can't be regenerated.
Draw a card.

As an additional cost to cast this spell, pay or sacrifice an artifact or creature.
Destroy target creature or planeswalker.

Exile target creature if it has mana value 3 or less.
Corrupted — Exile that creature instead if its controller has three or more poison counters.

At the beginning of combat on your turn, you may have target Vampire get +2/+0 until end of turn.

You may mill two cards. Then return up to two creature cards from your graveyard to your hand.

At the beginning of your upkeep, each player sacrifices a non-Vampire creature of their choice.

Lord of the Pyrrhian Legions — Whenever Anrakyr the Traveller attacks, you may cast an artifact spell from your hand or graveyard by paying life equal to its mana value rather than paying its mana cost.

Flash
Whenever an opponent draws a card except the first one they draw in each of their draw steps, Orcish Bowmasters deals 1 damage to any target. Then amass Orcs 1.

Menace
When this creature enters or dies, you gain 2 life.
Basic landcycling

Deathtouch
Whenever Aphelia attacks, you may pay . If you do, create a 1/1 black Snake creature token with deathtouch.
: Until end of turn, whenever one or more Gorgons and/or Snakes you control deal combat damage to a player, that player loses half their life, rounded up.

Flying
At the beginning of your end step, you may exile an enchantment card from your graveyard. If you do, create a 2/2 black Zombie creature token.

Return up to three target creature cards of the creature type of your choice from your graveyard to your hand.

Morph
When this creature is turned face up, target creature gets -3/-3 until end of turn.

Flying
When this creature dies, you may put target Zombie card from your graveyard on top of your library.

Target creature becomes black and gains fear until end of turn.
Draw a card.

Flash
Whenever this creature attacks, surveil 1.

Target opponent reveals their hand. You choose a card from it with mana value 4 or greater and exile that card.

, , Sacrifice this creature: Return target creature card from your graveyard to the battlefield. That creature gains haste. At the beginning of the next end step, sacrifice it.

Enchant creature
When Precipitous Drop enters, venture into the dungeon.
Enchanted creature gets -2/-2. It gets -5/-5 instead as long as you've completed a dungeon.

As an additional cost to cast this spell, sacrifice a creature.
Flying
When this creature enters, each opponent discards a card and loses 2 life. You draw a card and gain 2 life.

Converge — Target player discards X cards, where X is the number of colors of mana spent to cast this spell.

Flying
Modular 3
Whenever another artifact you control enters, target creature an opponent controls gets -1/-1 until end of turn.