Orcish Bowmasters, Intruder Alarm, Lumengrid Augur, and Ashnod's Altar

Prerequisites

• Orcish Bowmasters on the battlefield
• Intruder Alarm on the battlefield
• Lumengrid Augur on the battlefield
• Ashnod's Altar on the battlefield
• Lumengrid Augur does not have summoning sickness
• You do not control an Army
• available

Steps

1. Activate Lumengrid Augur by paying and tapping it, causing target opponent to loot
2. Orcish Bowmasters triggers, dealing 1 damage to any target, then creating a 0/0 Orc Army creature token and putting a +1/+1 counter on it
3. When the Orc Army enters the battlefield, Intruder Alarm triggers, untapping all creatures
4. Activate Ashnod's Altar by sacrificing the Orc Army, adding
5. Repeat

Results

• Infinite draw triggers for opponents
• Infinite looting for opponents
• Infinite self-discard triggers for opponents
• Near-infinite colorless mana
• Near-infinite damage
• Near-infinite death triggers
• Near-infinite ETB
• Near-infinite LTB
• Near-infinite sacrifice triggers
• Near-infinite untap of all creatures