Kotaro Fuma, The Unseen

Shroud (Can't be the target of any spells)
If Kotaro were to leave the battlefield, instead
you may choose another nonland permanent
you control to leave in his place.
If Kotaro is in the graveyard you may sacrifice
target creature and pay {x} to return Kotaro
to the battlefield, where {x} is the sacrificed
creatured converted mana cost.