Deadly Sentencing

When Deadly Sentencing enter the battlefield, if another Domain is on the battlefield, they clash.
(When 2 Domain clash, their owner each roll a D20,
the player with the lower score Sacrifice his Domain.
A player can't have 2 domains.)
Whenever one or more creatures an opponent
attack you, flip a coin, if you win, prevent all
damage that would be dealt to you or permanent
you control this turn and destroy these creatures.