Axis of Devotion

Royalty - When Axis of Devotion enters the battlefield, gain control of X target creatures with converted mana cost X or less for as long as you control Axis of Devotion, where X is the number
of creatures with royalty you control.
Show complete and utter devotion to me, and I will
save your soul. Out there, your children are stolen by witches and your families slaughtered by werewolves.
In here, you are safe and united under my subjection.