Goddess Morathi-Khaine

Commanding Presence - Your opponents can't cast spells during combat. During combat, treat your opponents' creatures that block or are blocked
by Goddess Morathi-Khaine as though their
power was reduced by 1.
Worship Through Bloodshed - During your combat phase, if one or more of your opponents'
creatures dies, untap all creatures you control
and after this phase, there's an additional
combat phase.
This ability only triggers once per turn.