Outmaneuver

Oracle Text

X target blocked creatures assign their combat damage this turn as though they weren't blocked.

Card Rulings

4/1/2008 If a creature is attacking a planeswalker, assigning its damage as though it weren’t blocked means the damage is assigned to the planeswalker, not to the defending player.
4/1/2008 Creatures damage the defending player or planeswalker even if the blocking creatures are no longer there at that time.