Havi, the All-Father, Saffi Eriksdotter, and Phlage, Titan of Fire's Fury

Prerequisites

• Havi, the All-Father on the battlefield
• Saffi Eriksdotter on the battlefield
• Phlage, Titan of Fire's Fury in hand
• available

Steps

1. Cast Phlage by paying
2. When Phlage enters the battlefield, its first and second abilities trigger
3. Holding priority, activate Saffi by sacrificing it, targeting Phlage
4. When Saffi dies, Havi triggers, returning any legendary creature card with mana value 1 or less from your graveyard to the battlefield
5. Resolve the Saffi ability
6. Resolve the second Phlage trigger, dealing 3 damage to any target and causing you to gain 3 life
7. Resolve the first Phlage trigger, causing you to sacrifice it
8. When Phlage dies, Havi and Saffi trigger
9. Resolve the Havi trigger, returning Saffi from your graveyard to the battlefield
10. Resolve the Saffi trigger, returning Phlage from your graveyard to the battlefield
11. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite damage
• Infinite lifegain triggers
• Infinite lifegain