Hierophant’s Decree

Ordain (When you cast this spell you may tap an
untapped Human you control that shares a color with
it. If you do, this spell becomes ordained.)
If Hierophant`s Decree was ordained, you may
tap or untap up to two target creatures with
total mana value 3 or less. Then, destroy all
untapped creatures.
``Kneel, or face the Vahimgar`s wrath.`` - Taharqa,
Dread Polymath