Menace, first strike
Exile a card from your graveyard, Pay 1 life: Add {C}. Spend this mana only to cast an instant or sorcery spell.

Flying
When Blue Collar Bloodsucker enters, you gain 2 life. Then if you control a red permanent, Blue Collar Bloodsucker deals 2 damage to each opponent.

Vigilance
Other creatures you control with vigilance get +1/+1.
Whenever one or more creatures with vigilance you control attack, you may tap target creature.

When Brass Baker enters, create a Food token.

Flying
When Breaching Jaxl enters, untap target nonland permanent.
Wander {2}{U}

Flying
When Bringer of Heliod's Light enters, you may bless target creature.

Drop — When Bumping Betta enters, if you didn't cast any creature spells during your last turn, return up to one target nonland permanent to its owner's hand.

At the beginning of your end step, if a creature card or creature token was put into your graveyard from anywhere this turn, surveil 1.

Vigilance
Whenever Bureau Mentor attacks, teach target attacking creature with lesser power vigilance. Untap that creature.

Flying, haste
Whenever you cast an instant or sorcery spell with mana value 4 or greater, you may return Burning Witch to its owner's hand. If you do, copy that spell. You may choose new targets for the copy.

Vigilance
Once each turn, if you would put one or more counters on a creature you control, you may put that many of each of those kinds of counters on each creature you control instead.

Flying
Indulgence
Whenever you indulge, you may return target creature card from your graveyard to your hand.

This spell costs {1} less to cast for each creature that died this turn.
{2}, Sacrifice a creature: Choose one —
• Each opponent loses 2 life.
• Caustic Influencer gets +2/+2 until end of turn.

Each player can't cast more than one spell or activate more than one activated ability that isn't a mana ability each turn.

{W}, Exile an artifact or enchantment card from your graveyard: You gain 3 life.
{2}{U}, Exile an instant or sorcery card from your graveyard: Draw a card.
{4}{B}, Exile a creature or planeswalker card from your graveyard: Create a tapped 0/0 colorless Robot artifact creature token with three +1/+1 counters on it.

Whenever Chamille, AAA-Lister attacks, target nonlegendary creature can't block it this turn.
Whenever Chamille deals combat damage to a player, put a +1/+1 counter on it, then create a Treasure token for each counter on it.

First strike
When Chosen of Heliod enters, bless target creature.
{4}{W}{W}: Bless target creature you control. Activate only as a sorcery.

You may cast this spell without paying its mana cost if your devotion to black is four or greater.
Deathtouch
Whenever Chrolcatos deals combat damage to player, you draw a card and you lose 1 life.

When Cliffwalker enters, return a permanent you control to its owner's hand.
Wander {1}{W}

When Crownguard Instructor enters, put a vigilance counter on target creature you control.

Vigilance
Whenever Dark Ambassador attacks, exile up to one target creature, then return that card to the battlefield tapped under its owner's control.

Flying
When Daybreak Rider enters, you may bless another target creature.

Indulgence
Whenever you indulge, put a +1/+1 counter on target creature you control.

Whenever Defthand Infiltrator deals combat damage to a player, put a +1/+1 counter on it if it doesn't have one on it.
Defthand Infiltrator can't be blocked as long as it has a counter on it.

Once each turn, when another artifact you control enters, you may tap or untap target creature.