Betrayers of Kamigawa

Veil of Secrecy

Target creature is unblockable and can't be the target of spells or abilities this turn.
Splice onto Arcane—
Return a blue creature you control to its owner's hand. (As you play an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Target creature gains shroud until end of turn and can't be blocked this turn. (A creature with shroud can't be the target of spells or abilities.)
Splice onto Arcane—Return a blue creature you control to its owner's hand. (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)