Jemmoria, Demon Binder

(If {b/r} was payed with {b}, this creature is black and red.)
Trample
Demons don't untap during their controller's next untap step.
Whenever a Demon taps, Jemmorhia, Demon Binder deals 1 damage to target creature or player.
{r}{b/r}, or {1}, {t}: Tap target demon.
{r}{b/r}, or {1}, {t}: Untap target demon.