Orthion's second ability by paying ({6} magic symbol) ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) and tapping it, creating five token copies of
Priest of Urabrask with haste.
When the token
Priest of Urabrasks enter the battlefield, they trigger, adding fifteen ({R} magic symbol) .
Activate
Staff of Domination's third ability by paying ({3} magic symbol) and tapping it, untapping
Orthion.
Activate
Staff of Domination's first ability by paying ({1} magic symbol) , untapping it.
Repeat.
Once you have infinite mana, you may use it to activate
Staff of Domination's other abilities.
You may also instead target any other creature using
Orthion's ability.
Results
Infinite card draw.
Infinite copies of creatures you control.
Infinite creature tokens with haste.
Infinite death triggers.
Infinite draw triggers.
Infinite ETB.
Infinite lifegain.
Infinite lifegain triggers.
Infinite LTB.
Infinite mana creatures you control can produce.
Infinite red mana.
Infinite sacrifice triggers.
Infinite untap of creatures you control.
Metadata
In 256 decks according to EDHREC.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).