At the beginning of your upkeep, Oloro's first ability triggers, causing you to gain 2 life.
Oloro's second ability triggers, holding priority, activate a permanent you control by tapping it, adding at least 1.
Resolve the Oloro trigger, causing you to pay 1 to draw a card and cause each opponent to lose 1 life.
Sheoldred triggers. Holding priority, activate Mind Over Matter by discarding a card, untapping a mana-producing permanent.
Resolve the Sheoldred trigger, causing you to gain 2 life.
Repeat from step 2.
This loop is masterminded by Oloro, Ageless Ascetic, whose passive upkeep gain initiates a cascade the moment you pay into his triggered ability. Drawing that card immediately brings Sheoldred, the Apocalypse into the equation, turning every single draw into a net gain of life while draining your opponents. To keep the engine roaring, Mind Over Matter steps in to convert your hand size into untapped mana sources, discarding a card to untap whatever is fueling your {1} payments. With Oloro, Ageless Ascetic providing the initial spark from the command zone and Sheoldred, the Apocalypse buffering your life total, Mind Over Matter turns your entire deck into fuel for a devastating cycle of endless draws and life manipulation.