Haki of the Supreme King

Enchant legendary creature with power 4 or greater.
Enchanted creature gets +4/+0 gains Hexproof and "Whenever this creature attacks, tap each creature
with power lesser then the power of this creature,
and put a -1/-1 counter on each creature with power
equal to the power of this creature".
"The act of not doubting. That is strength!"
- Silvers Rayleigh explains Haki to Luffy