Shield Block Shield Block is a 3 Mana Cost Free Warrior Spell card from the Basic set! Flavor Text Shields were invented because Face Block is USELESS. Mana Cost: 3 Crafting Cost: 0 / 0 (Golden) Arcane Dust Gained: 0 / 0 (Golden) Rarity: FreeClass: WarriorType: SpellSet: Basic Tweet Rate this Card Rate this item:1.002.003.004.005.00Submit Rating Rating: 4.0/5. From 1 vote. Please wait... By: Stonekeep - March 26, 2021 - Updated: 4 years ago