Ash, Herald of Lightweavers

Flash
Whenever Ash, Herald of Lightweavers attacks,
you may have it become a copy of target creature defending player controls, except it's legendary,
its name is Ash Herald of Lightweavers and has
this ability. If you do, Ash gains protection from
the colors of the copied creature.
When Ash deals combat damage to a player, draw
half that many cards rounded up.