Defiant Sandblade

When Defiant Sandblade enters, it wages a battle.
(Create a colorless Confrontation battle token with starting defense 3. As it enters, choose an opponent to protect it. You and others can attack it. When it's defeated, draw a card and put a +1/+1 counter on
each creature you control.)

{2}{r}{w}: Choose a player, planeswalker, or battle. Attacking creatures that have waged a battle can't
be blocked this turn as long as they're attacking the
chosen player or permanent.