Core Set 2020

Bishop of Wings | Creature | Human Cleric | Whenever an Angel enters the battlefield under your control, you gain 4 life. Whenever an Angel you control dies, create a 1/1 white Spirit creature token with flying. | Matt Stewart

Starfield Mystic | Creature | Human Cleric | Enchantment spells you cast cost {1} less to cast. Whenever an enchantment you control is put into a graveyard from the battlefield, put a +1/+1 counter on Starfield Mystic. | Eric Deschamps

Marauding Raptor | Creature | Dinosaur | Creature spells you cast cost {1} less to cast. Whenever another creature enters the battlefield under your control, Marauding Raptor deals 2 damage to it. If a Dinosaur is dealt damage this way, Marauding Raptor gets +2/+0 until end of turn. | Bayard Wu

Thunderkin Awakener | Creature | Elemental Shaman | Haste Whenever Thunderkin Awakener attacks, choose target Elemental creature card in your graveyard with toughness less than Thunderkin Awakener's toughness. Return that card to the battlefield tapped and attacking. Sacrifice it at the beginning of the next end step. | Yongjae Choi

Voracious Hydra | Creature | Hydra | Trample Voracious Hydra enters the battlefield with X +1/+1 counters on it. When Voracious Hydra enters the battlefield, choose one — • Double the number of +1/+1 counters on Voracious Hydra. • Voracious Hydra fights target creature you don't control. | Wayne Reynolds

Steel Overseer | Artifact Creature | Construct | {T}: Put a +1/+1 counter on each artifact creature you control. | Chris Rahn