Yarok, the Desecrated [Core Set 2020 Prerelease Promos] BT8-031 Whenever a creature dealt damage

Whenever a creature dealt damage by Sengir Vampire this turn dies

The others

Set: Revised Edition Type: Enchantment Rarity: Rare Cost: {1}{R}{R} Blue creatures don't untap during their controllers' untap steps

Set: Weatherlight Type: Artifact Rarity: Rare Cost: {8} {5}: Until end of turn

Yarok, the Desecrated [Core Set 2020 Prerelease Promos] BT8-031 Whenever a creature dealt damageSet: Core Set 2020 Prerelease Promos Type: Legendary Creature Elemental Horror Rarity: Mythic Cost: {2}{B}{G}{U} Deathtouch, lifelink If a permanent entering the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time. "Yarok grieves within the waste Of Bala Ged's corrupted land." *Lament for Bala Ged*, stanza 1