Core Set 2019

Mentor of the Meek | Creature | Human Soldier | Whenever another creature with power 2 or less enters the battlefield under your control, you may pay {1}. If you do, draw a card. | Jana Schirmer & Johannes Voss

Sai, Master Thopterist | Legendary Creature | Human Artificer | Whenever you cast an artifact spell, create a 1/1 colorless Thopter artifact creature token with flying. {1}{U}, Sacrifice two artifacts: Draw a card. | Adam Paquette

Death Baron | Creature | Zombie Wizard | Skeletons you control and other Zombies you control get +1/+1 and have deathtouch. | Nils Hamm

Isareth the Awakener | Legendary Creature | Human Wizard | Deathtouch Whenever Isareth the Awakener attacks, you may pay {X}. When you do, return target creature card with mana value X from your graveyard to the battlefield with a corpse counter on it. If that creature would leave the battlefield, exile it instead of putting it anywhere else. | Jason Rainville

Phylactery Lich | Creature | Zombie | Indestructible As Phylactery Lich enters the battlefield, put a phylactery counter on an artifact you control. When you control no permanents with phylactery counters on them, sacrifice Phylactery Lich. | Michael Komarck

Runic Armasaur | Creature | Dinosaur | Whenever an opponent activates an ability of a creature or land that isn't a mana ability, you may draw a card. | Randy Vargas