War Squeak is a common Enchantment — Aura card from Bloomburrow (BLB), collector number 160. Current market price: $0.14 (foil $0.23), TCGplayer market prices via Scryfall.
Enchant creature When this Aura enters, target creature an opponent controls can't block this turn. Enchanted creature gets +1/+1 and has haste.