Unctus, Grand Metatect, Basalt Monolith, and March of the Machines

Prerequisites

• Unctus, Grand Metatect on the battlefield
• Basalt Monolith on the battlefield
• March of the Machines on the battlefield
• Basalt Monolith does not have summoning sickness
• available

Steps

1. Activate Unctus by paying , causing Basalt Monolith to become a blue artifact in addition to its other types until end of turn
2. Activate Basalt Monolith's first ability by tapping it, adding
3. Basalt Monolith triggers, causing you to loot
4. Activate Basalt Monolith's second ability by paying , untapping it
5. Repeat from step 2

Results

• Infinite draw triggers
• Infinite looting
• Infinite self-discard triggers