Pentarch Ward is a common Enchantment — Aura card from Iconic Masters (IMA), collector number 27. Current market price: $0.22 (foil $0.39), TCGplayer market prices via Scryfall.
Enchant creature As this Aura enters, choose a color. When this Aura enters, draw a card. Enchanted creature has protection from the chosen color. This effect doesn't remove this Aura.