Valindra, Squire Initiate

{1}{b}, Discard a card: Valindra, Squire Initiate gains indestructible until end of turn.
Tap it. Then if there are four or more creature cards in your graveyard, transform Valindra, Squire Initiate into Valindra,
Ember's Champion.

"You know, you would make a great squire!" - Strahd