Emmara, Soul of the Accord, Intruder Alarm, Grand Architect, and Unctus, Grand Metatect

Prerequisites

• Emmara, Soul of the Accord on the battlefield
• Intruder Alarm on the battlefield
• Grand Architect on the battlefield
• Unctus, Grand Metatect on the battlefield
• available

Steps

1. Activate Unctus by paying , causing Emmara to become a blue artifact until end of turn
2. Activate Grand Architect's second ability by tapping Emmara, adding that can only be spent to cast artifact spells and/or to activate abilities of artifacts
3. Emmara triggers twice
4. Resolve the first trigger, causing you to loot
5. Resolve the second trigger, creating a 1/1 Soldier creature token
6. When the Soldier enters the battlefield, Intruder Alarm triggers, untapping all creatures
7. Repeat from step 2

Results

• Infinite card draw
• Infinite draw triggers
• Infinite looting
• Near-infinite colorless mana that can only be spent to activate abilities of artifacts
• Near-infinite colorless mana that can only be spent to cast artifact spells
• Near-infinite creature tokens
• Near-infinite ETB
• Near-infinite untap of all creatures