Turtle Traveller

If {w} was spent to cast this card, when
Turtle Traveller enters the battlefield, return
a creature card from your graveyard to your
hand. Turtle Traveller is also white and
a Monk, in addition to its other types.
If {b} was spent to cast this card, when
Turtle Traveller enters the battlefield,
destroy target non-black creature.
Turtle Traveller is also black and a Ninja,
in addition to its other types.