Mr. Swan, the Last Buccaneer

When Mr. Swan, the Last Buccaneer becomes
the target of a spell, sacrifice it.
Mr. Swan, the Last Buccaneer can't be blocked
except by Spirits.
{3}{u}: Another target creature you control can't
be blocked this turn except by Spirits.
Mr. Swan had roved through the buccaneer era since
its inception and died in its last battle.