Nadaar, Selfless Paladin (27) [AFR Ampersand Promos] Basic Fairy Energy creatures can't attack you or

creatures can't attack you or a planeswalker you control unless their controller pays 1 for each of those creatures

and destroy it

Harry Potter Hogwarts Battle: A Cooperative Deck-Building Game

From there

Each pin comes with an exclusive promo card + a mystery promo card

Nadaar, Selfless Paladin (27) [AFR Ampersand Promos] Basic Fairy Energy creatures can't attack you orRarity: R #: 27 Card Type: Legendary Creature Dragon Knight P T: 3 3 Description: Vigilance Whenever Nadaar, Selfless Paladin enters the battlefield or attacks, venture into the dungeon.(Enter the first room or advance to the next room.) Other creatures you control get +1 +1 as long as you've completed a dungeon.