Aphetto Alchemist + Black Market + Lithoform Engine + Umbral Mantle

Mana needed: {2}

UB identity

Commander legal

The 4 combo pieces

• Aphetto Alchemist
• Black Market
• Lithoform Engine
• Umbral Mantle

What must be in place

Black Market has at least six charge counters on it.
Umbral Mantle attached to Aphetto Alchemist.
Aphetto Alchemist does not have summoning sickness.

How to execute it

1. At the beginning of your precombat main phase, Black Market's second ability triggers.
2. Holding priority, activate Lithoform Engine's first ability by paying {2} and tapping it, copying Black Market's trigger.
3. Resolve the copy of Black Market's trigger, adding at least six {B}.
4. Activate Aphetto Alchemist by tapping it, untapping Lithoform Engine.
5. Activate Aphetto Alchemist by paying {3} and untapping it, giving it +2/+2 until end of turn.
6. Repeat from step 2.

What the combo produces

• Infinite black mana
• Infinite mana artifacts you control can produce
• Infinite mana creatures you control can produce
• Infinite untap of artifacts you control
• Infinite untap of creatures you control
• Infinitely large creature until end of turn