Verena, Sovereign of Decay

At the beginning of your upkeep, you may return target creature card from your graveyard to the battlefield under your control. If you do, you lose
life equal to its converted mana cost.
{1}{b}: Return target Human you control to its
owner's hand. Verena gains indestructible until
end of turn.
In the realm of decay, life is but an offering to
the eternal cycle.