Xizhen, Bard of Many Tales

Whenever a creature you control deals combat
damage to a player exile the top card of that
player's library. You may cast it this turn if it is a noncreature nonland and you may cast it without paying its mana cost. If that card was your masterpiece instead exile the top three cards of
that player's library instead then gain control of
target creature that player
controls.
Xizhen traveled through Rezzata, collecting tales he brought to life through his music.