Draconic Visitor, Smaug the Impenetrable, and Dragon Tempest

Prerequisites

• Draconic Visitor in hand
• Smaug the Impenetrable on the battlefield
• Dragon Tempest on the battlefield
• available

Steps

1. Cast Draconic Visitor by paying
2. When Draconic Visitor enters, Dragon Tempest's first and second ability trigger
3. Resolve the second trigger, dealing damage to Smaug
4. Smaug triggers, creating a number of 5/5 Dragon creature tokens due to Draconic Visitor
5. When the Dragons enter, Dragon Tempest's first and second ability trigger that many times
6. Resolve all of the Dragon Tempest triggers from its first ability, giving the tokens haste until end of turn
7. Resolve the first trigger from Dragon Tempest's second ability, dealing damage to Smaug
8. Repeat from step 4

Results

• Infinite Treasure tokens
• Infinite artifact ETB
• Infinite artifact LTB
• Infinite artifact sacrifice triggers
• Infinite artifact tokens
• Infinite colored mana
• Infinite creature ETB
• Infinite creature tokens with haste
• Infinite damage