Iconic Shield

Equipped creature gets +1/+2 and has "Whenever this creature attacks, another target attacking creature gains indestructible until end of turn." (Damage and effects that say "destroy" don't destroy it.) Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6oogcdhwg1pb1hd8mcj9cx.