Tap Kiki-Jiki to create a token copy of Dwarven Priest with haste.
The token enters gaining you at least 12 life.
Pay 12 life to Treasonous Ogre to add {R}{R}{R}{R}.
Pay {1} to untap Staff of Domination and {3} and tap Staff of Domination to untap Kiki-Jiki.
Repeat.

Infinite card draw

Infinite creature tokens with haste

Infinite ETB

Infinite lifegain

Infinite lifegain triggers

Infinite red mana

Infinite untap of creatures you control

Infinite draw triggers

Infinite mana creatures you control can produce

Kiki-Jiki, Mirror Breaker

Staff of Domination

Treasonous Ogre

Dwarven Priest

Tap Kiki-Jiki to create a token copy of Dwarven Priest with haste.
The token enters gaining you at least 9 life.
Pay 9 life to Treasonous Ogre to add {R}{R}{R}.
Pay {3} to untap Kiki-Jiki.
Repeat.

Sword of the Paruns

Infinitely large creature until end of turn

Umbral Mantle

Combos with "Dwarven Priest"