Smothering Tithe

Whenever an opponent draws a card, that player may pay . If the player doesn’t, you create a Treasure token. (It’s an artifact with “, Sacrifice this artifact: Add one mana of any color.”)

Treasure

, Sacrifice this artifact: Add one mana of any color.

Slimebind

Flash
Enchant creature
Enchanted creature gets -4/-0.

Cindervines

Whenever an opponent casts a noncreature spell, Cindervines deals 1 damage to that player.
, Sacrifice Cindervines: Destroy target artifact or enchantment. Cindervines deals 2 damage to that permanent’s controller.

Smothering Tithe

Whenever an opponent draws a card, that player may pay . If the player doesn’t, you create a Treasure token. (It’s an artifact with “, Sacrifice this artifact: Add one mana of any color.”)

Lawmage’s Binding

Flash
Enchant creature
Enchanted creature can’t attack or block, and its activated abilities can’t be activated.

Capture Sphere

Flash (You may cast this spell any time you could cast an instant.)
Enchant creature
When Capture Sphere enters the battlefield, tap enchanted creature.
Enchanted creature doesn’t untap during its controller’s untap step.

Luminous Bonds

Enchant creature
Enchanted creature can’t attack or block.

Goblin Locksmith

Whenever Goblin Locksmith attacks, creatures with defender can’t block this turn.

Graveyard Marshal

, Exile a creature card from your graveyard: Create a tapped 2/2 black Zombie creature token.

Hired Blade

Flash (You may cast this spell any time you could cast an instant.)

Graveyard Marshal

, Exile a creature card from your graveyard: Create a tapped 2/2 black Zombie creature token.

Court Cleric

Lifelink (Damage dealt by this creature also causes you to gain that much life.)
Court Cleric gets +1/+1 as long as you control an Ajani planeswalker.

Khorvath’s Fury

For each player, choose friend or foe. Each friend discards all cards from their hand, then draws that many cards plus one. Khorvath’s Fury deals damage to each foe equal to the number of cards in their hand.

Inner Demon

Enchant creature
Enchanted creature gets +2/+2, has flying, and is a Demon in addition to its other types.
When Inner Demon enters the battlefield, all non-Demon creatures get -2/-2 until end of turn.

Grothama, All-Devouring

Other creatures have “Whenever this creature attacks, you may have it fight Grothama, All-Devouring.”
When Grothama leaves the battlefield, each player draws cards equal to the amount of damage dealt to Grothama this turn by sources they controlled.

Sparring Construct

When Sparring Construct dies, put a +1/+1 counter on target creature you control.

Diligent Excavator

Whenever you cast a historic spell, target player mills two cards. (Artifacts, legendaries, and Sagas are historic.)

Polyraptor

Enrage — Whenever Polyraptor is dealt damage, create a token that’s a copy of Polyraptor.

Polyraptor

Enrage — Whenever Polyraptor is dealt damage, create a token that’s a copy of Polyraptor.

Mer Man

When this creature enters the battlefield, you may draw a card.

Teacher’s Pet

, Sacrifice Teacher’s Pet: Search your library for a card with augment, combine it with target host you control, then shuffle your library.

Kindly Cognician

Spells you cast that refer to artifacts or Contraptions in their rules text cost less to cast.

Humming-

Flying
Whenever you attack with two or more creatures,
Augment (, Reveal this card from your hand: Combine it with target host. Augment only as a sorcery.)