精鋭秘儀術師 (Elite Arcanist) (ja)
Creature - Human Wizard | Power/Toughness: 1 / 1 (CMC 4)
When Elite Arcanist enters the battlefield, you may exile an instant card from your hand.
, : Copy the exiled card. You may cast the copy without paying its mana cost. X is the mana value of the exiled card.