Prismatic Ward - Fifth Edition (Common)

Prismatic Ward is a one-mana Aura enchantment from Fifth Edition that allows you to choose a colour when it enters the battlefield, preventing all damage dealt to the enchanted creature by sources of that colour. This makes it effective for protecting key creatures against targeted removal or damage spells, especially in decks that rely on a specific colour for their threats. However, its utility is limited to preventing damage, so it won't help against effects that cause other types of harm.