The Maskforgers

0: Put a sheild counter on up to one target creature and on up to one target enchantment.
-2: Create Vronos's Mask, a legendary blue aura token with Enchant creature and "Enchanted creature gets +3/+5 and can't be blocked."
-5: Reveal the top seven cards of your library. Put all enchantments revealed onto the battlefield and the rest on the bottom in any order.