Protego

Target creature you control gains hexproof, indestructible and "Can't be Sacrificed" until
end of turn.

Wizard Craft 2: You may cast an Instant or Sorcery spell with mana value 3 or less that was put into exile this turn from paying a Wizard Craft cost this turn without paying its cost.
(as and additional cost to this spell, you may exile an instant or sorcery card from your hand or sacrifice 4 clues to add this effect to the spell).