Pay {2} to activate Magus of the Coffers, adding at least seven {B}.
Pay {3} to activate Staff of Domination's third ability, untapping Magus of the Coffers.
Pay {1} to activate Staff of Domination's first ability, untapping itself.
Repeatedly tap the Magus for mana and untap it, generating at least {B} per iteration.

Infinite black mana

Infinite lifegain triggers

Infinite lifegain

Infinite card draw

Infinite untap of creatures you control

Infinite draw triggers

Infinite mana creatures you control can produce

Magus of the Coffers

Staff of Domination

Pay {2} to activate Magus of the Coffers, adding at least six {B}.
Activate Sword of the Paruns, untapping Magus of the Coffers (floating {2}).
Repeatedly tap the Magus for mana and untap it, generating at least {B} per iteration.

Sword of the Paruns

Activate Necrotic Ooze using Magus of the Coffers' ability by paying {2} and tapping it, adding at least {B}{B}{B}{B}.
Activate Necrotic Ooze using Pili-Pala's ability by paying {2} and untapping it, adding one mana of any color.
Repeat.

Infinite colored mana

Necrotic Ooze

Pili-Pala

Activate Necrotic Ooze using Magus of the Coffers' ability by paying {2} and tapping it, adding at least {B}{B}{B}{B}{B}.
Activate Necrotic Ooze using Farmstead Gleaner's ability by paying {2} and untapping it, putting a +1/+1 counter on it.
Repeat.

Infinite +1/+1 counters on a creature

Farmstead Gleaner

Cast Corpse Dance with buyback, returning Magus of the Coffers from your graveyard to the battlefield.
Tap Magus of the Coffers adding {B}{B}{B}{B}{B}{B}.
Sacrifice Magus of the Coffers to Ashnod's Altar adding {C}{C}.
Repeat.

Infinite colorless mana

Infinite death triggers

Infinite creature ETB

Infinite creature LTB

Infinite magecraft triggers

Infinite creature sacrifice triggers

Infinite storm count

Corpse Dance

Ashnod's Altar

Activate Magus of the Coffers by paying {2} and tapping it, adding at least {B}{B}{B}{B}{B}.
Cast Corpse Dance with buyback by paying {2}{B} due to Blood Funnel.
Blood Funnel triggers, causing you to sacrifice Magus of the Coffers.
Resolve Corpse Dance, returning Magus of the Coffers from your graveyard to the battlefield, giving it haste, and returning Corpse Dance to your hand.
Repeat.
If you control six or more Swamps, this combo nets infinite black mana.

Blood Funnel

Activate Ashnod's Altar by sacrificing Magus of the Coffers, adding {C}{C}.
Activate Magus of the Coffers' unearth ability by paying {2}{B}, returning it from your graveyard to the battlefield, giving it haste and exiling it at end of turn or when it leaves the battlefield.
Activate Magus of the Coffers by paying {2} and tapping it, adding at least six {B}.
Activate Ashnod's Altar by sacrificing Magus of the Coffers, adding {C}{C}.
Both Magus of the Coffers's undying ability and Void Maw attempt to exile Magus of the Coffers when it would be put into your graveyard.
Choose to apply the Void Maw replacement effect, exiling Magus of the Coffers.
Activate Void Maw by putting Magus of the Coffers from exile into your graveyard, giving Void Maw +2/+2 until end of turn.
Repeat from step 2.

Combos with "Magus of the Coffers"