Lurrus of the Dream-Den [Ikoria: Lair of Behemoths]

Companion — Each permanent card in your starting deck has mana value 2 or less. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} any time you could cast a sorcery.)
Lifelink
During each of your turns, you may cast one permanent spell with mana value 2 or less from your graveyard.