Sylas, Supreme Arcanist

Flying.
Ward - Discard an enchantment, instant,
or sorcery card.
Whenever you cast your second spell each turn,
each opponent mills two cards. When one or
more cards are milled this way, exile target
enchantment, instant, or sorcery card with equal
or lesser mana value than that spell from an
opponent's graveyard. Copy the exiled card. You
may cast the copy without paying its mana cost.