Estwald Shieldbasher is a common Creature — Human Soldier card from Innistrad: Double Feature (DBL), collector number 278. Current market price: $0.30 (foil $0.17), TCGplayer market prices via Scryfall.
Whenever this creature attacks, you may pay {1}. If you do, it gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)