The King Of Dragons

You may pay 5 life as an alternative to paying
this cards mana cost.
Enchant Dragon
When The King Of Dragons enters the
battlefield, destroy all other creatures
that have or have had King Of Dragons
enchantments attached to them. Gain control of
target Dragon an opponent controls.
Enchanted Dragon gets +4/+5 and has
indestructible, first strike trample, and menace.