Back for Seconds, Tenacious Tomeseeker, Ministrant of Obligation, Ashnod's Altar, and Pitiless Plunderer

Prerequisites

• Back for Seconds in hand
• Tenacious Tomeseeker on the battlefield
• Ministrant of Obligation on the battlefield
• Ashnod's Altar on the battlefield
• Pitiless Plunderer on the battlefield

Steps

1. Activate Ashnod's Altar twice by sacrificing Tenacious Tomeseeker and Ministrant of Obligation, adding
2. When Tenacious Tomeseeker and Ministrant of Obligation die, Pitiless Plunderer triggers twice, and Ministrant of Obligation triggers once
3. Resolve both Pitiless Plunderer triggers, creating two Treasure tokens
4. Resolve the Ministrant of Obligation trigger, creating two 1/1 Spirit creature tokens
5. Activate the Treasures by tapping and sacrificing it, adding
6. Cast Back for Seconds by paying , and choosing to pay its bargain cost by sacrificing a Spirit
7. When the Spirit dies, Pitiless Plunderer triggers, creating a Treasure token
8. Resolve Back for Seconds, returning Tenacious Tomeseeker and Ministrant of Obligation from your graveyard to your hand, and then putting Ministrant of Obligation onto the battlefield
9. Cast Tenacious Tomeseeker by paying , and choosing to pay its bargain cost by sacrificing a Spirit token
10. When the Spirit dies, Pitiless Plunderer triggers, creating a Treasure token
11. When Tenacious Tomeseeker enters the battlefield, it triggers, returning Back for Seconds from your graveyard to your hand
12. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite colorless mana
• Infinite storm count
• Infinite magecraft triggers
• Infinite Treasure tokens