Moseo, Vein's New Dean (SOS 326)

Legendary Creature — Bird Skeleton Warlock • Mana cost: {2}{B} • Secrets of Strixhaven • Rare

Flying
When Moseo enters, create a 1/1 black and green Pest creature token with "Whenever this token attacks, you gain 1 life."
Infusion — At the beginning of your end step, if you gained life this turn, return up to one target creature card with mana value X or less from your graveyard to the battlefield, where X is the amount of life you gained this turn.

Illustrated by Abz J Harding.