Whenever a creature you control becomes blocked, you may untap it and remove it from combat.
, Sacrifice Nivea: Create an Akroma, Angel of Wrath token. (She's a legendary 6/6 Angel creature with flying, first strike, vigilance, trample, haste, and protection from black and from red.)

When Splinter enters, destroy up to one target tapped creature.
When Splinter leaves the battlefield, you and another target player each draw a card.

Rare and mythic rare spells you cast cost less to cast.
, , Reveal a My Little Pony® toy you own: Until end of turn, another target creature gains protection from each color in that toy's coat, mane, and outfit.

When Sanguine Brushstroke enters the battlefield, create a Blood token and conjure a card named Blood Artist onto the battlefield.
Whenever you sacrifice a Blood token, each opponent loses 1 life and you gain 1 life.

: Regenerate this creature. Activate only if this creature blocked or was blocked by a blue creature this turn.

Any number of target players may each search their library for a basic land card, put it onto the battlefield under their control, then shuffle.

When this creature enters the battlefield, exile target creature. Its controller seeks a creature card.

Creatures target player's team controls get +1/+1 until end of turn.

Rejuvenation — : Return Vladimir and Godfrey from your graveyard to the battlefield tapped. It perpetually gets +1/+1. Activate only if you control a 1/1 creature.

First strike
Prevent all combat damage that would be dealt by blocking creatures that are tapped.
: Tap target creature blocking New Master of Arms.

All creatures with art by the artist of your choice get +2/+2 and gain trample until end of turn.

Roll three six-sided dice. For each different result, create a 1/1 white Clown Robot artifact creature token.

Lands you control enter the battlefield untapped.
At the beginning of your end step, the topmost land card in your library perpetually gains "Whenever this land is tapped for mana, add an additional ."

Defender (This creature can't attack.)
: This creature gets +1/+1 until end of turn.

When you cast this spell, counter it unless you sacrifice a land.
At the beginning of each player's upkeep, that player sacrifices a land of their choice.
When there are no lands on the battlefield, sacrifice this enchantment.

Enchant land
As long as enchanted land is a basic Mountain, Goblin creatures get +0/+2.

Flying
When Mangled Soulrager enters, switch the power and toughness of each creature on the battlefield. You get a twelve-time boon with "Whenever a creature you control enters, switch its power and toughness."
Cycling

Whenever this creature deals combat damage to a player, roll a six-sided die. That player loses life equal to the result.

Whenever Massimo or another creature you control enters, exile up to one target instant or sorcery card with mana value 1 from your graveyard. If a card is exiled this way, that creature gains "Whenever this creature deals combat damage to a player, copy the exiled card. You may cast the copy without paying its mana cost."

When Urza's Construction Drone enters, conjure cards named Urza's Mine, Urza's Power Plant, and Urza's Tower into your library, then shuffle.
Whenever Urza's Construction Drone attacks or dies, seek an Urza's land card.

Counter target spell. Cards in your hand that share a card type with that spell perpetually gain "This spell costs less to cast."

Pestilence Rats's power is equal to the number of other Rats on the battlefield. (For example, as long as there are two other Rats on the battlefield, Pestilence Rats's power and toughness are 2/3.)

Hexproof from artifacts and enchantments
When this creature specializes, destroy up to one target artifact or enchantment. You get a one-time boon with "When you cast a creature spell, it perpetually gets +1/+0 and gains haste."

Haste
Whenever this creature enters or attacks, target creature you control perpetually gets +1/+0.
If a creature you control becoming the target of a spell or ability causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

Permanents you control gain hexproof and indestructible until end of turn.
Seek a creature card if an opponent has cast a spell with mana value 3 or less this turn.

When Ulder Ravengard, Marshal enters the battlefield, another target nontoken creature you control gains double team until end of turn.
Whenever Ulder Ravengard attacks, conjure a duplicate of another target nontoken attacking creature into your hand.

Put a +1/+1 counter on each of up to three target creatures. Untap them.

Starting intensity 1
At the beginning of combat on your turn, you may cast a spell with mana value equal to Jarsyl, Dark Age Scion's intensity from your graveyard without paying its mana cost. If you do, Jarsyl intensifies by 1.

: Counter target black spell unless that spell's controller pays or .

Untap all white creatures you control.
Whenever a creature blocks this turn, it gets +0/+1 until end of turn.

Fruitcake Elemental is indestructible.
At the end of your turn, Fruitcake Elemental deals 7 damage to you.
: Target player gains control of Fruitcake Elemental.

As this creature enters, roll a six-sided die. This creature enters with a number of funk counters on it equal to the result.
At the beginning of your upkeep, remove a funk counter from this creature. If you can't, sacrifice it.

Creatures you control get +2/+0 and gain alpha strike until end of turn. (A creature with alpha strike has first strike as long as it's blocking or being blocked by a creature that comes after it alphabetically.)

The owner of target permanent shuffles it into their library. Then they may look at the top card of their library and may wrap it. If it's a permanent card, they may put it onto the battlefield. Otherwise, they may put it onto the battlefield face down as a 4/4 red Present creature. (To wrap a card, put it inside lots of sleeves. If it would be dealt damage or destroyed, remove a sleeve from it instead.)

+1: Untap up to one target Elf. That Elf and a random Elf creature card in your hand perpetually get +1/+1.
−1: Seek an Elf card.
−6: Conjure a card named Regal Force onto the battlefield.

Desertwalk
Prevent all damage that would be dealt to this creature by Deserts.