Reign of Ethem and Moron

Creatures may come into play attacking at anytime for their Ninjutsu cost, without returning another creature to your hand.
..Ethem did execute judgment in wickedness all
his days; and he begat Moron. And it came to
pass that Moron did reign in his stead; and
Moron did that which was wicked
before the Lord. -Ether 11:14