Odium Reigns

At the beginning of your declare attacker step for combat, you may sacrifice an enchantment. If you
do, put a 1/3 green Singer creature token onto
the battlefield tapped and attacking.
At the beginning of your endstep, sacrifice a
creature you control. When you do, put one of
His Rhythms onto the battlefield.
"Why is there so much war? Must we always fight?." -Kaladin, leader of Bridge Four