Arlo, The Dethroned King

If Arlo, The King of Wellston is dealt damage
equal to or less than your current life total in a
single turn, prevent that damage. Arlo, The King
of Wellston deals that much damage to the
damage's source.
If Arlo takes more damage than your current life
total in a single turn, you take two times as much damage that would supersede your current life
total. all damage that would be dealt to you is
dealt to Arlo instead until it goes over your
current life total each turn.