The Pure Vessel

Vigilance, first strike
When The Pure Vessel enters the Battlefield or attacks, choose one—
•Target opponent loses 3 life
•The Pure Vessel gains lifelink until the end
of turn
{2}{w/b}{w/b}If you control The Pure Vessel and a card
named The Radiance, exile them and then return them
to the battlefield melded into The Hollow Knight
Partner with The Radiance