The Leviathan

A magic crown appears on your head. For 2d4+1
attacks, nobody can attack or directly harm others.
However, the crowned person can be attacked &
that person can attack others. Once during each
round, a massive leviathan springs up from below
(like the ground is water) & tries to swallow a
random person whole! But it will not attack the
crowned person. The crown can be taken & others
can just kill the crown wearer: thus the Leviathan
vanishes. But if they do, 6d6 evil killers appear!
The life