Black Market + Strionic Resonator + Aphetto Alchemist + Umbral Mantle

Prerequisites

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

Steps

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

Effects

• 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